AnswersAG Q3 Math 8 25-26 JTurnerUnit Test

Unit Test — Unit test Answers

25 verified answers
21
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What method can be used to write the equation of a line in slope-intercept form given two points?

A
Find the slope using the formula , and then substitute one point and the slope into the equation to find the y-intercept.
Option A
B
Find the slope using the formula , and then substitute one point and the slope into the equation to find the y-intercept.
Option B
C
Find the y-intercept using the formula , and then substitute one point and the y-intercept into the equation to find the slope.
Option C
D
Find the y-intercept using the formula , and then substitute one point and the y-intercept into the equation to find the slope.
Option D
22
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Ashley started the year with 45 comic books. Each month, she adds 5 more comic books to her collection. Which table correctly represents y, the number of comic books in her collection, after x months?

A
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 1, 2, 3. Column 2 is labeled y with entries 5, 50, 95, 140.
Option A
B
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 1, 2, 3. Column 2 is labeled y with entries 45, 50, 55, 60.
Option B
C
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 5, 10, 15. Column 2 is labeled y with entries 45, 46, 47, 48.
Option C
D
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 5, 10, 15. Column 2 is labeled y with entries 45, 90, 135, 180.
Option D
23

A florist shop represents its first month’s sales with the equation , where x represents the number of days that the shop is open and y represents the sales in dollars. The owner of the shop would like to calculate the number of days it took to reach $3,200 in sales. Which would be used to solve the problem?

Question illustration
A
Substitute 3,200 for x.
B
Add 8 and 3,200.
C
Divide 3,192 by 168.
D
Isolate y in the equation.
24

A linear function has an y-intercept of and a slope of . How does this function compare to the linear function that is represented by the table?xy

Question illustration
A
It has the same slope and the same y-intercept.
B
It has the same slope and a different y-intercept.
C
It has the same y-intercept and a different slope.
D
It has a different slope and a different y-intercept.
25

What are the slope and the y-intercept of the linear function that is represented by the graph?

Question illustration
A
The slope is , and the y-intercept is –2.
Option A
B
The slope is , and the y-intercept is 3.
Option B
C
The slope is , and the y-intercept is –2.
Option C
D
The slope is , and the y-intercept is 3.
Option D

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