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Scattered Plot

Total questions: 160

Worksheet time: 7hrs 28mins

Name
Class
Date
1.

What type of relationship does this graph have?

a)

Positive

b)

Negative

c)

No Relationship

2.

What type of relationship does this graph have?

a)

Positive

b)

Negative

c)

No Relationship

3.

What type of relationship does this scatter plot show?

a)

Positive

b)

Negative

c)

No Relationship

4.

What type of relationship does this scatter plot represent?

a)

Positive

b)

Negative

c)

No Relationship

5.
Which scatter plot show a positive relationship?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
6.
Which scatter plot shows no relationship?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
7.
Which scatter plot shows a negative relationship?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
8.
Based on the scatterplot, which of the following conclusions about the relationship between her height and weight is true? 
a)
There is a negative relationship between height and weight
b)
There is a positive relationship between height and weight
c)
There is a constant relationship between height and weight
d)
There is no relationship between height and weight
9.
Which statement best represents this relationship?
a)
There is no relationship between the number of miles driven and the amount of gas remaining in the tank
b)
As the number of miles driven increases, the amount of gas remaining in the tank increases.
c)
As the number of miles driven increases, the amount of gas remaining in the tank decreases.
d)
A relationship cannot be determined from this scatter plot
10.
In the scatter plot, does the image shows a "Line of Best Fit"?
a)
Yes
b)
No
11.
In the scatter plot, does the image shows a "Line of Best Fit"?
a)
Yes
b)
No
12.
In the scatter plot, does the image shows a "Line of Best Fit"?
a)
Yes
b)
No
13.
Which statement best describes the relationship shown in this scatter plot?
a)
Students with a bigger shoe size earn a higher math score
b)
Students with a smaller show size earn a higher math score
c)
A student's shoe size has no effect on their math score
d)
A student with a shoe size of 8 will always earn a score of 80%
14.
Based on the scatter plot, which statement best describes the trend?
a)
As the daily temperature increases, the number of beach visitors increases.
b)
as the daily temperature decreases, the number of beach visitors increases.
c)
As the daily temperature increases, there is no change in the number of beach visitors
d)
As the daily temperature increases, the number of beach visitors decreases
15.
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 
a)
12 chapters
b)
15 chapters
c)
18 chapters
d)
21 chapters
16.
What type of correlation (association)?
The outside temperature and the amount of layers you wear. 
a)
Positive correlation
b)
Negative correlation
c)
No correlation
17.
The number of siblings you have and your weight. 
a)
Positive correlation
b)
Negative correlation
c)
No correlation
18.
What is the type of correlation?
a)
Negative 
b)
no association
c)
positive 
19.
What type of correlation does this graph have?
a)
positive
b)
negative
c)
none
d)
all of the above
20.
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 140 pages. 
a)
12 chapters
b)
19 chapters
c)
14 chapters
d)
21 chapters
21.
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many pages would be in a book with 6 chapters. 
a)
100 pages
b)
170 pages
c)
60 pages
d)
20 pages
22.
You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?
a)
As x increases, y decreases
b)
As x increases, y increases
c)
As x decreases, y decreases
23.
What is a line of best fit used for?
a)
To make predictions
b)
To make the graph look pretty
c)
To connect the points
d)
To make it look like you know what you are doing
24.

What would most likely have a negative association?

a)

The radius of a circle and it's area?

b)

How many layers of clothing a person wears and the temperature outside

c)

The temperature outside and how long the air conditioner runs

25.
What is a scatter plot?
a)
A graph that shows the relationship of two data sets.
b)
A graph drawn using rectangular bars to show how large each value is.
c)
A graph that shows information that is connected in some way.
d)
A graph that shows data changing over time.
26.
If the debate team plans to practice for 6 hours, how many debates should they win?
a)
20
b)
16
c)
24
d)
28
27.
Which of the following could be a possible line of best fit for the data?
a)
y = -5/2x + 20
b)
y = -x + 19
c)
y = x + 20
d)
y = 2/3x + 15 
28.

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?

a)

85

b)

92

c)

70

d)

76

29.

In the scatter plot, does the image show a "Line of Best Fit"?

a)

Yes

b)

No

30.

Which of the following best models a linear function fitted to the data in the scatter plot?

a)
b)
c)
d)
31.

Based on the graph, if Joe earned $400, how many hours did he work?

a)

25 hours

b)

35 hours

c)

45 hours

d)

15 hours

32.
If a scatterplot has no association then...
a)
...it has no ordered pairs
b)
...it has ordered pairs that have a negative pattern
c)
...its ordered pairs have no predictable pattern
d)
...if it makes a lion on a graph (roar!)
33.
The number of siblings you have and your weight. 
a)
Positive correlation
b)
Negative correlation
c)
No correlation
d)
All of the above
34.
The equation of the trend line is y= 1/2x +1
How many laps can a bicycle make around the park in 23 minutes?
a)
44 laps
b)
12 1/2 laps
c)
23 laps
35.

What is the equation of the line of best fit?

a)

y = -25x + 170

b)

y = -5/8x + 170

c)

y = 25x + 170

d)

y = 5/8x + 170

36.
Select the statement that best describes the line.
a)
The line is the line of best fit.
b)
The line is NOT a line of best fit because it does not pass through two points.
c)
The line is NOT a line of best fit because it does not go through the middle of the data set.
d)
The line is NOT a line of best fit because it does not go through the origin.
37.
Which of the following lines represents the line of best fit for the scatter plot?
a)
A
b)
B
c)
C
d)
D
38.
What type of association does this graph have?
a)
positive 
b)
negative
c)
none
d)
all of the above
39.
As x increases, y increases
a)
correlation coefficient
b)
causation
c)
positive correlation
d)
negative correlation
40.
What is the correlation?
a)
Negative correlation
b)
No correlation
c)
Positive correlation
d)
All of the above
41.
As the age of the car increases, its value decreases. Which scatterplot represents this relationship?
a)
A
b)
B
c)
C
d)
D
42.
What is a scatter plot?
a)
A graph that shows the relationship of two data sets.
b)
A graph drawn using rectangular bars to show how large each value is.
c)
A graph that shows information that is connected in some way.
d)
A graph that shows data changing over time.
43.
You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?
a)
As x increases, y decreases
b)
As x increases, y increases
c)
As x decreases, y decreases
44.
What represents the x axis?
a)
ABC Company
b)
Hours Worked
c)
Amount Earned in Dollars
d)
Hours in Car
45.
What represents the y axis?
a)
ABC Company
b)
Hours Worked
c)
Amount Earned in Dollars
d)
Hours in Car
46.
What is the correlation between length of running start and distance of jump?
a)
positive:  the further you run the further you jump
b)
negative: the less you run the less distance of your jump
c)
positive: the further your running start the less your distance
47.
What type of correlation is shown in this plot?
a)
Positive
b)
Negative
c)
No Correlation
48.
What type of correlation is shown in this plot?
a)
Positive
b)
Negative
c)
No Correlation
49.

What type of association does this graph have?

a)

Negative

b)

no association

c)

positive

50.

What type of association does this graph have?

a)

positive

b)

negative

c)

non linear

d)

all of the above

51.

Which sentence describes the relationship shown on this scatter plot?

a)

As the temperature decreases, the visitors increase.

b)

As the temperature increases, the number of visitors increases.

c)

As the visitors increase, the temperature decreases.

d)

No correlation

52.

What type of association does this scatter plot show?

a)

positive

b)

negative

c)

no correlation

d)

nonlinear association

53.

Describe the association in the graph shown.

a)

Strong Negative

b)

Strong Positive

c)

Weak Negative

d)

Weak Positive

54.

Which scatter plot show a positive relationship?

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

55.

Based on the scatterplot, which of the following conclusions about the relationship between her height and weight is true?

a)

There is a negative relationship between height and weight

b)

There is a positive relationship between height and weight

c)

There is a constant relationship between height and weight

d)

There is no relationship between height and weight

56.

Which statement best describes the association between the energy and light output of these lightbulbs?

a)

As the energy increases, the light output increases

b)

As the energy increases, the light output decreases

c)

As the energy increases, the light output remans the same

d)

There is no apparent association between the energy and light output

57.

Which statement is best supported by the scatterplot?

a)

There is a non-linear association between the number of lanes rented and the number of people who bowl.

b)

There is a negative linear association between the number of lanes rented and the number of people who bowl.

c)

There is no apparent association between the number of lanes rented and the number of people who bowl.

d)

There is a positive association between the number of lanes rented and the number of people who bowl.

58.

Which conclusion is best supported by the scatterplot?

a)

As the length of a call increases, the cost of the call increases.

b)

As the length of a call increases, the cost of the call remains the same?

c)

As the length of a call increases, the cost of the call decreases.

d)

There is no relationship between the length of a call and the cost of a call.

59.
What is a scatter plot?
a)
A graph that shows the relationship of two data sets.
b)
A graph drawn using rectangular bars to show how large each value is.
c)
A graph that shows information that is connected in some way.
d)
A graph that shows data changing over time.
60.

What type of correlation does this graph have?

a)

positive

b)

negative

c)

none

d)

all of the above

61.

Which relationship could be represented by this scatter plot?

a)

As the number of muffins in a box increases, the price increases.

b)

As the speed of a car increases, the distance the car travels increases.

c)

As the population of a city increases, the number of schools in the

city increases.

d)

As the number of daylight hours increases, the number of night hours decreases.

62.

What type of correlation does this graph have?

a)

Negative

b)

no association

c)

positive

63.
What type of correlation does this scatter plot show?
a)
positive linear association
b)
negative linear association
c)
no association
d)
nonlinear association
64.
If a scatterplot has no association then...
a)
...it has no ordered pairs
b)
...it has ordered pairs that have a negative pattern
c)
...its ordered pairs have no predictable pattern
d)
...if it makes a lion on a graph (roar!)
65.
In a scatterplot, an outlier...
a)
...is something we didn't learn 8th grade
b)
...is a puppet with a long nose named Pinocchio
c)
...is a point that is far outside the main cluster of points/ordered pairs
d)
...is a really naughty point who doesn't tell the truth when outside
66.

What is the age of the tree that is 8 feet tall?

a)

6 Years

b)

7 Years

c)

8 Years

d)

9 Years

67.

JoBeth draws a scatter plot that shows as the outside temperature increases, sales at her lemonade stand increase. Which best describes the scatter plot?

a)

The points show that as x-values increase, y-values increase.

b)

The points show that as x-values increase, y-values decrease.

c)

The points show that as x-values decrease, y-values stay the same.

d)

The points show that as x-values decrease, y-values increase.

68.

Which of the following best describes a scatter plot that shows no relationship between the x-values and the y-values?

a)

As x-values increase, the points are higher on the graph.

b)

As x-values decrease, the points are higher on the graph.

c)

The points are scattered around the graph.

d)

The points form a horizontal line.

69.
Which scatter plot shows a linear relationship between x and y?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
70.
What type of association does this scatter plot represent?
a)
positive linear association
b)
negative association
c)
no association
d)
nonlinear association
71.
As the age of the car increases, its value decreases. Which scatterplot represents this relationship?
a)
A
b)
B
c)
C
d)
D
72.

Label the type of association shown by the scatter plot as positive, negative or none.

a)

positive

b)

negative

c)

none

73.

Label the type of association shown by the scatter plot as positive, negative or none.

a)

positive

b)

negative

c)

none

74.

Which best describes the association shown in the scatter plot below?

a)

Negative and linear

b)

Negative and non-linear

c)

Positive and linear

d)

Positive and non-linear

75.

Which scatter plot appears to be linear?

a)

Scatter plot A

b)

Scatter plot B

76.

What type of association does this scatter plot show?

a)

positive linear association

b)

negative linear association

c)

no association

d)

nonlinear association

77.
What type of association does this scatter plot represent?
a)
positive linear association
b)
negative linear association
c)
no association
d)
nonlinear association
78.
As the age of the car increases, its value decreases. Which scatterplot represents this relationship?
a)
A
b)
B
c)
C
d)
D
79.
What is the type of correlation?
a)
Negative 
b)
no association
c)
positive 
80.
What type of correlation does this graph have?
a)
positive
b)
negative
c)
none
d)
all of the above
81.
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 140 pages. 
a)
12 chapters
b)
19 chapters
c)
14 chapters
d)
21 chapters
82.
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many pages would be in a book with 6 chapters. 
a)
100 pages
b)
170 pages
c)
60 pages
d)
20 pages
83.
You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?
a)
As x increases, y decreases
b)
As x increases, y increases
c)
As x decreases, y decreases
84.
What is a line of best fit used for?
a)
To make predictions
b)
To make the graph look pretty
c)
To connect the points
d)
To make it look like you know what you are doing
85.

What would most likely have a negative association?

a)

The radius of a circle and it's area?

b)

How many layers of clothing a person wears and the temperature outside

c)

The temperature outside and how long the air conditioner runs

86.
What is a scatter plot?
a)
A graph that shows the relationship of two data sets.
b)
A graph drawn using rectangular bars to show how large each value is.
c)
A graph that shows information that is connected in some way.
d)
A graph that shows data changing over time.
87.
If the debate team plans to practice for 6 hours, how many debates should they win?
a)
20
b)
16
c)
24
d)
28
88.
Which of the following could be a possible line of best fit for the data?
a)
y = -5/2x + 20
b)
y = -x + 19
c)
y = x + 20
d)
y = 2/3x + 15 
89.

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam?

a)

85

b)

92

c)

70

d)

76

90.

In the scatter plot, does the image show a "Line of Best Fit"?

a)

Yes

b)

No

91.

Which of the following best models a linear function fitted to the data in the scatter plot?

a)
b)
c)
d)
92.

Based on the graph, if Joe earned $400, how many hours did he work?

a)

25 hours

b)

35 hours

c)

45 hours

d)

15 hours

93.
If a scatterplot has no association then...
a)
...it has no ordered pairs
b)
...it has ordered pairs that have a negative pattern
c)
...its ordered pairs have no predictable pattern
d)
...if it makes a lion on a graph (roar!)
94.
The number of siblings you have and your weight. 
a)
Positive correlation
b)
Negative correlation
c)
No correlation
d)
All of the above
95.
The equation of the trend line is y= 1/2x +1
How many laps can a bicycle make around the park in 23 minutes?
a)
44 laps
b)
12 1/2 laps
c)
23 laps
96.

What is the equation of the line of best fit?

a)

y = -25x + 170

b)

y = -5/8x + 170

c)

y = 25x + 170

d)

y = 5/8x + 170

97.
Select the statement that best describes the line.
a)
The line is the line of best fit.
b)
The line is NOT a line of best fit because it does not pass through two points.
c)
The line is NOT a line of best fit because it does not go through the middle of the data set.
d)
The line is NOT a line of best fit because it does not go through the origin.
98.
Which of the following lines represents the line of best fit for the scatter plot?
a)
A
b)
B
c)
C
d)
D
99.
What is the correlation?
a)
Negative correlation
b)
No correlation
c)
Positive correlation
d)
All of the above
100.
As the age of the car increases, its value decreases. Which scatterplot represents this relationship?
a)
A
b)
B
c)
C
d)
D
101.
Describe the correlation in the graph shown.
a)
Strong Negative
b)
Strong Positive
c)
Weak Negative
d)
Weak Positive
102.

What type of correlation does this graph have?

a)

positive

b)

negative

c)

none

d)

all of the above

103.

Which sentence describes the relationship shown on this scatter plot?

a)

As the temperature decreases, the visitors increase.

b)

As the temperature increases, the number of visitors increases.

c)

As the visitors increase, the temperature decreases.

d)

No correlation

104.

What type of correlation does this scatter plot show?

a)

positive

b)

negative

c)

no correlation

d)

nonlinear association

105.

Describe the correlation in the graph shown.

a)

Strong Negative

b)

Strong Positive

c)

Weak Negative

d)

Weak Positive

106.

Which scatter plot show a positive relationship?

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

107.
Describe the correlation in the graph shown.
a)
Weak Negative
b)
Weak Positive
c)
Strong Negative
d)
Strong Positive
108.
What is the correlation between length of running start and distance of jump?
a)
positive:  the further you run the further you jump
b)
negative: the less you run the less distance of your jump
c)
positive: the further your running start the less your distance
109.
Looking at the graph showing a line of best fit, what is the correlation shown?
a)
Length of life is constant
b)
Length of life increases as amount of sunlight increases
c)
Length of life increases as amount of sunlight decreases
d)
Length of life decreases as amount of sunlight increases
110.
What is a scatter plot?
a)
A graph that shows the relationship of two data sets.
b)
A graph drawn using rectangular bars to show how large each value is.
c)
A graph that shows information that is connected in some way.
d)
A graph that shows data changing over time.
111.

Name the type of association.

a)

no association

b)

nonlinear association

c)

positive associtation

d)

negative association

e)

scatter association

112.

Name the type of association.

a)

no association

b)

nonlinear association

c)

positive associtation

d)

negative association

e)

scatter association

113.

Name the type of association.

a)

no association

b)

nonlinear association

c)

positive associtation

d)

negative association

e)

negipositive association

114.

Name the type of association.

a)

no association

b)

nonlinear association

c)

positive associtation

d)

negative association

e)

scatter association

115.

Which scatter plot has a stronger association?

a)

Scatter Plot A because the points are closer together.

b)

Scatter Plot B because the points are further apart.

116.

Which scatter plot appears to be linear?

a)

Scatter Plot A

b)

Scatter Plot B

117.

Which is a true statement about two numerical sets of data that have negative association?

a)

A. As one variable increases, the other variable does not change.

b)

B. As one variable increases, the other variable increases.

c)

C. As one variable decreases, the other variable decreases.

d)

D. As one variable increases, the other variable decreases.

118.

What kind of correlation exists if as x increases, y increases

a)
correlation coefficient
b)
causation
c)
positive correlation
d)
negative correlation
119.

What kind of slope would the graph of the model have?

a)

Positive

b)

Negative

c)

There's no association

120.

What kind of slope would the graph of the model have?

a)

Positive

b)

Negative

c)

There's no association

121.

What kind of slope would the graph of the model have?

a)

Positive

b)

Negative

c)

There's no association

122.

Which graph has no association?

a)

A

b)

B

c)

C

d)

D

123.
What is the correlation between length of running start and distance of jump?
a)
positive:  the further you run the further you jump
b)
negative: the less you run the less distance of your jump
c)
positive: the further your running start the less your distance
124.
Describe the correlation in the graph shown.
a)
Strong Negative
b)
Strong Positive
c)
Weak Negative
d)
Weak Positive
125.
Describe the correlation in the graph shown.
a)
Weak Negative
b)
Weak Positive
c)
Strong Negative
d)
Strong Positive
126.

a)

F

b)

G

c)

H

d)

J

127.

What do you call when most of the data is located in a certain area on a graph?

a)

Cluster

b)

Gap

c)

Peak

d)

Data Party

128.
A point far away from the other data points is considered a(n) ____?
a)
cluster
b)
scatter plot
c)
outlier
d)
variable
129.

Identify any outliers.

a)

Outlier at x = 18

b)

Outlier at x = 12

c)

Outlier at x = 6

d)

There aren't any outliers in this graph.

130.

Identify any clusters.

a)

Cluster at x = 14

b)

Cluster at x = 18

c)

Cluster at x = 24

d)

There aren't any noteworthy clusters in this graph.

131.

Is this line an accurate line estimate of best fit for the data?

a)

Yes

b)

No

132.

Is this line an accurate line estimate of best fit for the data?

a)

Yes

b)

No

133.

What are the coordinates of the outlier?

a)

(1,9)

b)

(9,1)

c)

(2,2)

d)

y=x

134.

Which scatter plot shows a linear relationship between x and y?

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

135.
Based on the trend line, about how many guests should be expected if the temperature is around 80 degrees?
a)
8,300
b)
7,300
c)
8
d)
9,300
136.
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 
a)
12 chapters
b)
15 chapters
c)
18 chapters
d)
21 chapters
137.
Which of the following lines represents the line of best fit for the scatter plot?
a)
A
b)
B
c)
C
d)
D
138.
What is the meaning of the y-intercept?
a)
The weight in the bucket increases by 1 pound per pound of sand.
b)
Before sand is put in the bucket, it weighs 1 pound.
c)
The starting weight of the sand is 1 pound.
d)
The weight in the bucket decreases by 1 pound per pound of sand.
139.
The graph shows the candle's height (cm) as it burns (minutes).  What does the slope MEAN?
a)
The candle burns 1 cm every minute.
b)
The candle burns 2 cm every 2 minutes.
c)
The candle burns 2 cm every minute.
d)
The candle burns 1 cm every 2 minutes.
140.

What kind of slope would the graph of the model have?

a)

Positive

b)

Negative

c)

There's no association

141.

What kind of slope would the graph of the model have?

a)

Positive

b)

Negative

c)

There's no association

142.

What kind of slope would the graph of the model have?

a)

Positive

b)

Negative

c)

There's no association

143.

Which graph has no association?

a)

A

b)

B

c)

C

d)

D

144.
What is the correlation between length of running start and distance of jump?
a)
positive:  the further you run the further you jump
b)
negative: the less you run the less distance of your jump
c)
positive: the further your running start the less your distance
145.
Describe the correlation in the graph shown.
a)
Strong Negative
b)
Strong Positive
c)
Weak Negative
d)
Weak Positive
146.
Describe the correlation in the graph shown.
a)
Weak Negative
b)
Weak Positive
c)
Strong Negative
d)
Strong Positive
147.

a)

F

b)

G

c)

H

d)

J

148.

What do you call when most of the data is located in a certain area on a graph?

a)

Cluster

b)

Gap

c)

Peak

d)

Data Party

149.
A point far away from the other data points is considered a(n) ____?
a)
cluster
b)
scatter plot
c)
outlier
d)
variable
150.

Identify any outliers.

a)

Outlier at x = 18

b)

Outlier at x = 12

c)

Outlier at x = 6

d)

There aren't any outliers in this graph.

151.

Identify any clusters.

a)

Cluster at x = 14

b)

Cluster at x = 18

c)

Cluster at x = 24

d)

There aren't any noteworthy clusters in this graph.

152.

Is this line an accurate line estimate of best fit for the data?

a)

Yes

b)

No

153.

Is this line an accurate line estimate of best fit for the data?

a)

Yes

b)

No

154.

What are the coordinates of the outlier?

a)

(1,9)

b)

(9,1)

c)

(2,2)

d)

y=x

155.

Which scatter plot shows a linear relationship between x and y?

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

156.
Based on the trend line, about how many guests should be expected if the temperature is around 80 degrees?
a)
8,300
b)
7,300
c)
8
d)
9,300
157.
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 
a)
12 chapters
b)
15 chapters
c)
18 chapters
d)
21 chapters
158.
Which of the following lines represents the line of best fit for the scatter plot?
a)
A
b)
B
c)
C
d)
D
159.
What is the meaning of the y-intercept?
a)
The weight in the bucket increases by 1 pound per pound of sand.
b)
Before sand is put in the bucket, it weighs 1 pound.
c)
The starting weight of the sand is 1 pound.
d)
The weight in the bucket decreases by 1 pound per pound of sand.
160.
The graph shows the candle's height (cm) as it burns (minutes).  What does the slope MEAN?
a)
The candle burns 1 cm every minute.
b)
The candle burns 2 cm every 2 minutes.
c)
The candle burns 2 cm every minute.
d)
The candle burns 1 cm every 2 minutes.