AnswersGA-8th Grade MathematicsUnit Test

Unit Test — Unit test Answers

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Which is the best description for the graph?

Question illustration
A
The graph is increasing everywhere.
B
The graph is decreasing everywhere.
C
The graph is increasing, then decreasing.
D
The graph is decreasing, then increasing
42
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The data in which table represents a linear function that has a slope of zero?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
43

At breakfast, a restaurant charges $2 for the first cup of orange juice and then $1 for each refill. Which graph represents this situation?

A
A graph titled Orange Juice has number of refills on the x-axis and total cost on the y-axis. A line goes through points (0, 1) and (1, 3).
Option A
B
A graph titled Orange Juice has number of refills on the x-axis and total cost on the y-axis. A line goes through points (0, 1) and (1, 2).
Option B
C
A graph titled Orange Juice has number of refills on the x-axis and total cost on the y-axis. A line goes through points (0, 2) and (1, 4).
Option C
D
A graph titled Orange Juice has number of refills on the x-axis and total cost on the y-axis. A line goes through points (0, 2) and (1, 3).
Option D
44

The graph below represents the amount of change Jaxon would receive, y, if he bought a item with a cost of x. Jaxon’s ChangeWhich equation represents the graph?

Question illustration
A
y = 10 – x
B
y = x – 10
C
y = –x – 10
D
y = 10 + x
45

Line r is parallel to line c. Which angle is congruent to ?

Question illustration
A
Angle 2
Option A
B
Angle 4
Option B
C
Angle 5
Option C
D
Angle 6
Option D
46

An animal shelter estimates that it costs about $6 per day to care for each dog. If y represents the total cost of caring for a single dog for x days, which table models the situation?

A
A 2-column table with 3 rows. Column 1 is labeled x with entries 12, 15, 18. Column 2 is labeled y with entries 6, 9, 12.
Option A
B
A 2-column table with 3 rows. Column 1 is labeled x with entries 6, 9, 12. Column 2 is labeled y with entries 12, 15, 18.
Option B
C
A 2-column table with 3 rows. Column 1 is labeled x with entries 36, 54, 72. Column 2 is labeled y with entries 6, 9, 12.
Option C
D
A 2-column table with 3 rows. Column 1 is labeled x with entries 6, 9, 12. Column 2 is labeled y with entries 36, 54, 72.
Option D
47

Triangle VXW is similar to triangle ZXY.Kara finds the value of x. Her work is shown below.Step 1 Step 2 Step 3 Step 4 What is Kara’s first error?

Question illustration
A
Kara should have written the proportion in step 1 as .
Option A
B
Kara should have written the cross-product in step 2 as .
Option B
C
Kara did not correctly divide 864 by 14 going from step 3 to step 4.
D
Kara did not find the correct product of 72 and 12 going from step 2 to step 3.
48

A line graph in the coordinate plane that has no breaks in it is

A
a qualitative graph.
B
a continuous graph.
C
a discrete graph.
D
a cosmograph.

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