Functions, Slope & Linear Relationships Quick Check

A cleaning company charges an initial fee plus an additional amount for each hour of cleaning. The table

shows the linear relationship between the number of hours of cleaning, x, and the total cost including the initial

fee, y.

Which statement is true?

• The company charges an initial fee of $150.

• The company charges an hourly rate of $25.

• The company charges an initial fee of $25.

• The company charges an hourly rate of $75.

Tags

CCSS.HSF.LE.B.5

Triangles ABC and DEF are similar right triangles. Which proportion shows that the slope of AC is equal to the slope of DF?

• A. BC/AB = DE/AB

• B. BC/DE = EF/AB

• C. AB/DE = BC/AB

• D. BC/AB = EF/DE

Tags

CCSS.8.EE.B.6

Which of the following situations does not have the same unit rate as the graph shown?

• Asher pays $4 for 20 ounces of limeade.

• Archie walks 6 laps in 30 minutes.

• Melanie reads 9 pages of her book every 45 minutes.

• Richie earns $10 for 2 hours of work.

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CCSS.7.RP.A.2D

The following set of ordered pairs represents y as a function of x.

{(9, 8), (-2, -14), (6, 2), (-3, -16), (____, ____)}

Which of the following could be the missing ordered pair?

• A. (9, -8)

• B. (-3, 9)

• C. (-9, 8)

• D. (6, -2)

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which of the following is true about the graph shown below?

• A. The graph is not a function because it does not start at (0, 0).

• B. The graph is a function because it passes the vertical line test.

• C. It is not a function because it is not linear.

• D. It is a function because it has a constant rate of change.

The graph shows a linear function. Which of the following statement(s) are true?

• A. The function has a y-intercept at (0, 0.5).

• B. The function has a slope of 2/3.

• C. Both A and B are true.

• D. Neither A nor B are true.

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

A blue whale traveled 75 miles in 15 hours. Which graph has a slope that represents this rate?

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

Which of the statements about the graph is true?

• A

• B

• C

• D

Tags

CCSS.8.EE.B.5

The table below shows the amount that a catering company charges based on the number of people at an

event. Which of the following equations shows the relationship between c, the amount the company charges

based on p, the number of people at the event?

• A

• B

• C

• D

Tags

CCSS.HSF-BF.A.1A

Jharna paid $13.92 for 6 bracelet charms. Each bracelet charm cost the same amount. Which function can be used to find the total cost in dollars, y, for buying x bracelet charms?

• A. y = 13.92x

• B. y = 2.32x

• C. y = 6x

• D. y = 83.52x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2