8th Grade Math: Week 2 FSA Countdown Day 5

Which graph represents a function?

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Consider the graph of a line.

Which equation has a rate of change greater than the rate of change for the line shown?

• y = 3x - 1

• y = x/2 + 4

• y = 2x + 2

• y = x/3 - 3

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

Which phrase describes a nonlinear function?

• the area of a circle as a function of the radius

• the perimeter of a square as a function of the side length

• the cost of gasoline as a function of the number of gallons purchased

• the distance traveled by a car moving at a constant speed as a function of time

Tags

CCSS.8.F.A.3

The table below shows the cost of different numbers of goldfish at a pet store. The cost is a linear function of the number of goldfish.

Which statement describes the rate of change of this function?

• The cost increases $0.30 each time 1 goldfish is added.

• The cost increases $1.50 each time 1 goldfish is added.

• The cost increases $3.00 each time 5 goldfish are added.

• The cost increases $6.00 each time 5 goldfish are added.

Tags

CCSS.HSF-LE.A.1B

Samantha take sher sister Bethany to the playground. While they are there, they do the following activities:

Bethany rides on the seesaw. Samantha pushes Bethany on the swing. Bethany climbs up the ladder and slides down the slide.

The graphs of Bethany's activities are shown.

Which graph represents Bethany's ride on the seesaw?

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