8th Grade Functions Quiz

• linear and proportional relationship

• linear and non-proportional relationship

• non-linear relationship

Speedeez Go Carts charges $10 plus $2.50 per lap. Which best describes the relationship between total cost and the number of laps?

• linear and proportional

• linear and non-proportional

• non-linear relationship

Find the slope of the line that passes through (-3,-1) and (2,1).

• -5/2

• -2/5

• 2/5

• 5/2

Graph the equation y = 1/2x - 3

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• y = 3x-1

• y = x-3

• y = 3x+1

• y = x+3

• y = 2x+4

• y = 2x-4

• y = -2x+4

• y = -2x-4

What does the b in y = mx+b represent?

• base

• x-intercept

• y-intercept

What does the m in y = mx+b represent?

• y-intercept

• x-intercept

• slope

• rate of change

Which function has a greater rate of change?

• Function A

• Function B

Which diagram is not the graph of a function?

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