Linear Function Models

• -21

• -11

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8.F.4

Which statements are true. Select TWO answer choices.

• The function is linear between x=2 and x=4

• The function is linear between x=6 and x=8

• The function is decreasing between x = -9 and x = -6

• The function is increasing and linear between

  x= -4 and x= -1

• The function is decreasing and nonlinear between x= -1 and x= 2

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8.F.5

Which ordered pairs should be REMOVED to make the graph a function?

• (-2, 4) and (11, -7)

• (6, 5) and (6,7)

• (3,3) and (6,3)

• (1,1) and (6,7)

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8.F.1

Which equations are linear? Select TWO answer choices.

• 4 + y = 2x

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8.F.3

Which equations are NOT linear? Select THREE answer choices.

• 4 + y = 2x

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8.F.3

Which equations are linear functions?

Select TWO answer choices.

• -x = y

• 6x -3y = 12

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8.F.3

According to the graph, at what speed is this car traveling in miles per hour?

• 80 mph

• 20 mph

• 40 mph

• 160 mph

Tim bought a new phone. He paid $125 on the day of purchase, then $50 per month until it was paid off. What linear equation models this situation?

• y = 50x - 135

• y = 50x + 125

• y = 125 + 50

• y = 50x

What is the rate of change demonstrated in this graph?

• 2 cm per hour

• ¹/₄ cm per hour

• ¹/₂ cm per hour

• 4 cm per hour

What does the rate of change represent in this situation?

• The sloth runs 1 feet in 3 minutes

• The sloth runs 3 feet in 1 minute

• The sloth runs fast

• The sloth runs 6 feet in 1 minute