1.3-1.5 Quiz Review

What is the increasing interval on the function shown?

What is the increasing interval for the function below?

What is the decreasing interval on the function shown?

Which graph represents a function?

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Which diagram is not the graph of a function?

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• -26

• -18

• 22

• 8

• -14/55

• 14/55

• 2

• -2

f(x) = 3x² + 7x and g(x) = 2x² - x - 1, find (f - g)(x).

• x² + 8x + 1
• x² + 6x - 1
• 5x² + 8x - 1
• x² + 8x -1

• 8

• 1

• 29

• 22

Answer explanation

g(8)= (8)-7=1
f(1)= 3(1)+5
= 3+5
= 8