Free Printable WAM 35

1.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

2.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

3.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

4.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

5.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

6.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

7.

The line of best fit _____. Check all that apply.

a)

should include outliers.

b)

must pass through multiple points.

c)

should have about the same number of points above and below.

d)

can be used to make predictions.

8.

Using the given scatter plot, estimate how many emails per day an 18 year old gets.

a)

48

b)

38

c)

28

d)

18

9.

Using the scatterplot and best fit line, estimate what the resting heart rate is after 2 hours of exercise.

a)

65

b)

85

c)

72

d)

62

10.

I feel like I am ready for this quiz Friday!

a)

Completely Agree

b)

Mostly Agree

c)

Not sure

d)

Disagree some

e)

Completely disagree

11.

What type of association does this graph have?

a)

positive

b)

negative

c)

none

d)

all of the above

12.

What type of association does this graph show?

a)

Positive

b)

negative

c)

none

d)

all of the above

13.

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

a)

Yes

b)

No

14.

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

a)

Yes

b)

No

15.

What is the equation of the line of best fit?

a)

y= $-\frac{1}{2}x\ +\ 6$

b)

y= $\frac{1}{2}x\ +6$

c)

y= 6x + 2

d)

y = -2x +6

16.

What is the equation of the line of best fit

a)

y= -2x + 10

b)

y= 10x+ 2

c)

y=2x+10

d)

y= 10

17.

Which line is the best line of best fit?

a)

a

b)

b

c)

c

d)

i don't see any lines

18.

What are the coordinates of the outlier?

a)

(1,9)

b)

(9,1)

c)

(2,2)

d)

y=x

19.

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

20.

What is the equation of the line of best fit?

a)

y= 2x+3

b)

y=3x+2

c)

y= $\frac{1}{2}x\ +3$

d)

y= $-\frac{1}{2}x\ +3$

21.

Find the equation of the line of best fit for the given data

a)

y = 163.41x+1.49

b)

y =- 163.41x+ 4.19

c)

y =- 4.19x+163.41

d)

y = 4.19x -163.41

22.

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

23.

If Joe worked 30 hours, how much is he expected to earn?

a)

$600

b)

$200

c)

$1000

d)

$800

24.

What is the type of correlation?

a)

Negative

b)

no association

c)

positive

25.

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

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

26.

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

27.

The linear model to represent the distance (in miles) traveled given the time (in hours) driving is

m=-1.79+61.93h

. Predict how far a person will travel driving 10 hours.

a)

617.51 miles

b)

621.09 miles

c)

100 miles

d)

0.19 miles

28.

Write the linear regression equation for the following data points. Round to the nearest hundredth.

a)

$y=-0.83x+0.61$

b)

$y=-0.83x+0.63$

c)

$y=0.83x+-0.8$

d)

$a^2+b^2=c^2$

29.

What type of association does this graph show?

a)

Positive

b)

negative

c)

none

d)

all of the above

30.

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

a)

Yes

b)

No

31.

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

a)

Yes

b)

No

32.

What is the equation of the line of best fit

a)

y= -2x + 10

b)

y= 10x+ 2

c)

y=2x+10

d)

y= 10

33.

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

34.

This measures how strong or weak the relationship between 2 quantitative variables are.

a)

Scatter Plot

b)

Causation

c)

Correlation

d)

Line of best fit

35.

What does the value, r= -0.89, tell us about the linear relationship of two quantitative variables?

a)

Strong positive

b)

Weak positive

c)

Strong negative

d)

Weak negative

36.

What is the y-intercept?

a)

-2

b)

3

c)

2

d)

-3

37.

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.

38.

Which of the following lines represents the line of best fit for the scatter plot?

a)

A

b)

B

c)

C

d)

D

39.

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?

a)

55

b)

0

c)

103

d)

100

40.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

41.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

42.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

43.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

44.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

45.

Which line is the best fit line for this scatter plot?

a)

a

b)

b

c)

c

d)

d

46.

The line of best fit _____. Check all that apply.

a)

should include outliers.

b)

must pass through multiple points.

c)

should have about the same number of points above and below.

d)

can be used to make predictions.

47.

Using the given scatter plot, estimate how many emails per day an 18 year old gets.

a)

48

b)

38

c)

28

d)

18

48.

Using the scatterplot and best fit line, estimate what the resting heart rate is after 2 hours of exercise.

a)

65

b)

85

c)

72

d)

62

49.

I feel like I am ready for this quiz Friday!

a)

Completely Agree

b)

Mostly Agree

c)

Not sure

d)

Disagree some

e)

Completely disagree

50.

What type of association does this graph have?

a)

positive

b)

negative

c)

none

d)

all of the above

51.

What type of association does this graph show?

a)

Positive

b)

negative

c)

none

d)

all of the above

52.

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

a)

Yes

b)

No

53.

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

a)

Yes

b)

No

54.

What is the equation of the line of best fit?

a)

y= $-\frac{1}{2}x\ +\ 6$

b)

y= $\frac{1}{2}x\ +6$

c)

y= 6x + 2

d)

y = -2x +6

55.

What is the equation of the line of best fit

a)

y= -2x + 10

b)

y= 10x+ 2

c)

y=2x+10

d)

y= 10

56.

Which line is the best line of best fit?

a)

a

b)

b

c)

c

d)

i don't see any lines

57.

What are the coordinates of the outlier?

a)

(1,9)

b)

(9,1)

c)

(2,2)

d)

y=x

58.

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

59.

What is the equation of the line of best fit?

a)

y= 2x+3

b)

y=3x+2

c)

y= $\frac{1}{2}x\ +3$

d)

y= $-\frac{1}{2}x\ +3$

60.

A line of best fit used for

(Choose all tht apply)

a)

To make predictions

b)

To connect the points

c)

To make the graph look pretty

d)

To make it look like you know what you are doing

61.

What would be the correlation between study time and test grades?

a)

positive

b)

negative

c)

none

d)

cannot be determined

62.

What type of association (correlation) does this graph have?

a)

positive

b)

negative

c)

none

d)

all of the above

63.

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

a)

Yes

b)

No

64.

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

65.

which scatterplot shows the correct trend line (line of best fit) for the relationship showing the number of bags of chocolates that are sold and the price per bag?

a)

A

b)

B

c)

C

d)

D

66.

Which scatterplot shows the correct trend line (line of best fit) for the relationship shown?

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

67.

which scatterplot shows the correct trend line (line of best fit) for the relationship showing the number games played and attendance in the Small Fry Baseball Tournament?

a)

W

b)

X

c)

Y

d)

Z

68.

Which of the following lines represents the line of best fit for the scatter plot?

a)

A

b)

B

c)

C

d)

D

69.

which scatterplot shows the correct trend line (line of best fit) for the relationship showing the number of Visitors of a library and the number of books checked out?

a)

W

b)

X

c)

Y

d)

Z

70.

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?

a)

55

b)

0

c)

103

d)

100

71.

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

72.

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

73.

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)

65

b)

92

c)

70

d)

76

74.

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 19 chapters.

a)

150 pages

b)

170 pages

c)

190 pages

d)

210 pages

75.

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

a)

The more books students read, the lower their English grade.

b)

The more books students read, the higher their English grade.

c)

The fewer books students read, the higher their English grade.

d)

No relationship exists between the number of books students read and their English grades.

76.

Which of these represents slope-intercept form?

a)

y - y₁ = m(x-x₁)

b)

Ax + By = C

c)

y = mx + b

77.

Find the equation of the line in slope-intercept form.

a)

y = - 1/4x - 3

b)

y = 1/3x + 3

c)

y = - 1/4x + 2

d)

y = 1/3x -3

78.

Identify the slope and y-intercept $y=2+\frac{1}{3}x$

a)

Slope = $-\frac{1}{3}$ , Y-intercept = $2$

b)

Slope = $\frac{1}{3}$ , Y-intercept = $-2$

c)

Slope = $2$ , Y-intercept = $\frac{1}{3}$

d)

Slope = $\frac{1}{3}$ , Y-intercept = $2$

79.

After becoming Tik-tok famous, Taylor is offered a brand deal. She gets paid $200 for making a post about the brand and for every person that uses her promo code she earns $5. Which equation models Taylor's potential earnings

a)

y=5+200x

b)

y=200+5x

c)

y=5-200x

d)

y= -200+5x

80.

Sonya has $40 in her lunch account and pays $2 each day to eat lunch. Which equation can be used to find the amount of money Sonya has left on her account after x days?

a)

y = 40 + 2x

b)

y = 40 - 2x

c)

y = 2 + 40x

d)

y = 2 - 40x

81.

Which graph represents $y=-\frac{3}{2}x+4$

a)

b)

c)

d)

82.

At what rate did the rain fall?

a)

2 cm per hour

b)

¹/₄ cm per hour

c)

¹/₂ cm per hour

d)

4 cm per hour

83.

What does the slope represent in this situation?

a)

The sloth runs 1 feet in 3 minutes

b)

The sloth runs 3 feet in 1 minute

c)

The sloth runs fast

d)

The sloth runs 6 feet in 1 minute

84.

A holiday meal costs $12.50 a person plus a delivery fee of $30. Which equation represents the amount a holiday meal costs, including delivery, for x people?

a)

y = 30 + 12.5x

b)

y = 12.5 + 30

c)

y = 12.5 + 30x

85.

Sandra has a $20 itunes gift card and spends $3 each month. Which equation can be used to find how much money Sandra has on her giftcard after x months?

a)

y = 3x + 20

b)

y = 3 + 20x

c)

y = -3x + 20

d)

y = -20x + 3

86.

Which of the following is another meaning of y-intercept?

a)

location

b)

initial value

c)

total

d)

constant rate

87.

Dorothy loves to make cakes. The following table shows how the number of eggs that she has left changes as she makes cakes.
What is the meaning of the y-intercept?

a)

She uses 5 eggs for every 2 cakes.

b)

She started with 47 eggs.

c)

She uses 47 eggs for every 0 cakes.

d)

She started with 5 eggs.

88.

Slope is another word for:

a)

Initial Value

b)

Rate of Change

c)

Change in Y's

d)

Y-intercept

89.

You plan to attend the county fair this weekend. Admission to the fair is $5 and the cost per ride is $0.50.

Check off ALL of the following that are true.

a)

y = 0.5x + 5 will tell me how much I will spend on x rides

b)

After 3 rides I will spend $1.50

c)

If I go on NO rides I still have to pay $5 to get in.

d)

After 3 rides I will spend $6.50

e)

The slope is $5 per ride

90.

The graph shows the height (cm) of a candle as it burns, what is the y intercept and what does the y-intercept mean?

a)

b=9, Candle starts at 9 cm.

b)

b=9, the candle burns 9 inches per hour.

c)

b=2, the candle burns 2 inches per hour.

d)

b = 5, The candle ends at 5 cm

91.

The equation y=10x represents the amount of allowance, y, in dollars, that Jacob receives for doing x hours of chores. Which statement interprets the slope of this equation?

a)

Jacob does chores for $0 per hour.

b)

Jacob does chores for $10 per hour.

c)

Jacob receives $0 of allowance money before doing any chores.

d)

Jacob receives $10 of allowance money before doing any chores.

92.

An internet company charges a $100 set up fee, and then they charge $35 a month after that. What is the rate of change?

a)

$100

b)

$35

c)

$135

d)

$65

93.

A fish is swimming at a constant rate toward the ocean floor. The equation y = -7x - 3 can be used to represent this situation, where y is the depth of the fish in meters below sea level and x is the number of seconds the fish has been swimming.

Which statement best describes the depth of the fish, given this equation?

a)

From a starting position of 7 meters below sea level, the fish is descending 3 meters per second.

b)

From a starting position of 7 meters below sea level, the fish is ascending 3 meters per second.

c)

From a starting position of 3 meters below sea level, the fish is descending 7 meters per second.

d)

From a starting position of 3 meters below sea level, the fish is ascending 7 meters per second.

94.

The equation y = 2.34x + 6.78 models the approximate height of a tree in inches after x weeks. Which statements are true about the linear model?

Select 2 answer choices that apply.

a)

The tree grows a total of 2.34 inches.

b)

The tree grows about 6.78 inches each week.

c)

The tree grows about 2.34 inches each week.

d)

The initial height of the tree is 6.78 inches.

e)

The initial height of the tree is 2.34 inches.

95.

A T-shirt design company charges your team an initial fee of $25 to create the team's design. Each t-shirt printed with your design costs an additional $8. The equation for this situation is y = 8x + 25. Interpret the y-intercept in context.

a)

The additional fee of $8.

b)

The initial fee of $25.

c)

The additional fee of $25.

d)

The initial fee of $8.

WAM 35

Total questions: 95

Worksheet time: 3hrs 56mins

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