Unit 4 Review

Which relation is not a function?

• {(-9,2), (4,-5), (-2, 0), (0, 2)}

• 
• 
• 

Which ordered pair could be added to the relation below to ensure it continues to be a function?

{(-7, 0), (4, -1), (0, 5), (-2, -2)}

• (4, -4)

• (5, 0)

• (0, -3)

• (-7, -1)

What is the slope of the line graphed below?

• 3

• -3

• 1/3

• -1/3

What is the slope of the line graphed below?

• 1

• -1

• zero

• undefined

Find the slope of the line that passes through the points (-1, -3) and (-9, 7).

Evaluate responses using AI:

OFF

Answer explanation

Make sure to use the proper equation!

y2-y1 / x2-x1

-5/4

Find the slope of the line that passes through the points (-6, -2) and (-7, -2).

Evaluate responses using AI:

OFF

Answer explanation

Make sure to use the proper equation!

y2-y1 / x2-x1

0

The table below shows the age of a tree along with its height. Use the table to answer the following question.

What is the rate of change from year 2 to year 7?

• 1.2

• -1.2

• 0.83333

• -0.83333

The table below shows the age of a tree along with its height. Use the table to answer the following question.

During which interval is the rate of change the greatest?

• year 0 to year 2

• year 2 to year 7

• year 7 to year 9

• year 9 to year 13

The graph shows the number of students in the 8th grade class. Use the graph to answer the following question.

Find the rate of change from 2002 to 2008.

• -2.5 students per year

• 2.5 students per year

• -3 students per year

• 3 students per year

The graph shows the number of students in the 8th grade class. Use the graph to answer the following question.

Find the rate of change from 2012 to 2016.

• -10.5 students per year

• 10.5 students per year

• -11.25 students per year

• 11.25 students per year