wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Linear Relationships Practice Quiz

Total questions: 25

Worksheet time: 51mins

Name
Class
Date
1.

The scatter plot below can be used to find the approximate rate at which water flows  through a garden hose. The line of best fit for the scatter plot can be described by the equation  y=45xy=\frac{4}{5}x  .


If the rate, in gallons per minute, continues, approximately how many gallons of water will flow from the hose in 45  minutes?

a)

24

b)

36

c)

39

d)

56

2.

The number of pages read by Joy depends on the number of hours she spends reading a novel.


​The expression that represent the above situation is y= 20x + 3 where y represents the number of hours she spends reading and x represents the number of pages that she has read.


​After reading for a total of 5 hours, the number of pages read by Joy is

(a)  

3.

What are the coordinates of the outlier?

a)

(6,9)

b)

(9,6)

c)

What outlier

4.

What are the coordinates of the outlier?

a)

(9,1)

b)

(0,3)

c)

(1,9)

5.
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
6.
What is the type of correlation?
a)
Negative 
b)
no association
c)
positive 
7.
What type of correlation does this graph have?
a)
positive
b)
negative
c)
none
d)
all of the above
8.
Which of the following lines represents the line of best fit for the scatter plot?
a)
A
b)
B
c)
C
d)
D
9.
What type of correlation does this scatter plot show?
a)
positive linear association
b)
negative linear association
c)
no association
d)
nonlinear association
10.
Which scatter plot shows a linear relationship between x and y?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
11.
In a scatterplot, a cluster...
a)
...is something we didn't learn in 8th grade
b)
...is a point on the origin
c)
...is a point that is far outside the main cluster of points/ordered pairs
d)
...is a group of points that are close together
12.
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. 
13.

Which sentence best supports the relationship shown on this scatter plot?

a)

The more time spent training, the longer it takes to run 100 m.

b)

As the time spent training increases, the time to run 100 m decreases.

c)

As the time spent training decreases, the time to run 100 m decreases.

d)

There is no apparent association between the amount of time spent training and the time it takes to run 100 m.

14.

Julie made 25 international long-distance phone to London last month. The scatter plot below shows the length and cost of each phone call she made.


Which conclusion is best supported by the scatter plot?

a)

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

b)

As the length of the call increases, the cost of the call remains the same.

c)

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

d)

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

15.
Which sentence describes the relationship shown on this scatterplot?
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
16.

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

a)

Yes

b)

No

17.

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

a)

Yes

b)

No

18.

Describe this graph:

a)

Linear Function

b)

Non-Linear Function

c)

Not a Function at ALL

19.

Describe this graph:

a)

Linear Function

b)

Nonlinear Function

c)

Not a Function at ALL

20.

Describe this graph:

a)

Linear Function

b)

Nonlinear Function

c)

Not a Function at ALL

21.

What is the domain of the cluster in the scatter plot?

a)

less than 32 pages read

b)

between 32 and 72 pages read

c)

between 32 and 38 pages read

d)

between 38 and 60 pages read

22.

What are the outliers and what do they represent? Check ALL that apply.

a)

(146, 80) A person with a height of 146 cm and a weight of 80 kg.

b)

(80, 146) A person with a height of 80 cm and a weight of 146 kg.

c)

(175, 40) A person with a height of 175 cm and a weight of 40 kg.

d)

(40, 175) A person with a height of 40 cm and a weight of 175 kg.

23.

The same data is shown in each scatter plot. Choose the graph with the line that best models the data in the scatter plot.

a)
b)
c)
d)
24.

The number of inches of rain, y, after x minutes of rainfall during a storm can be modeled by the equation shown.


y = 0.004x


How many inches of rain falls in 2 minutes? (no unit, just number)

(a)  

25.

Paul wrote the equation t = 2m + 40 to represent the temperature, t, in degrees Celsius, after a substance had been heated for m minutes.


Based on Paul's equation, what will the temperature be in Celsius after 30 minutes?


(just number, no unit)

(a)