Algebra Ch 5 Review Functions

Find (f ⋅ g)(x) for f(x) = 3x² and g(x) = 5 – x.

• 3x² – x + 5

• 3x² – 15x²

• 75 – 30x + 3x²

• 15x² – 3x³

Tags

CCSS.HSF-BF.A.1B

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Tags

CCSS.HSF-IF.C.7B

Determine which pair of functions are inverse functions.Determine which pair of functions are inverse functions.

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Tags

CCSS.HSF-BF.B.4B

If f(x) = x² + 1, and g(x) = x – 2, find [f ◦ g](x).

• x² – 4x + 5

• x² – 1

• x² – 3

• x³ – 2x² + x – 2

Tags

CCSS.HSF-BF.A.1C

• x ≥ 0

• x ≤ –2

• –2 ≤ x ≤ 6

• x ≥ 6

Find (f – g)(x) for f(x) = x² + 8x and g(x) = 3x + 5.

• –x² – 5x + 5

• x² + 5x + 5

• x² + 5x – 5

• x² + 11x + 5

Tags

CCSS.HSF-BF.A.1B

Find the inverse of f(x) = 3 + 5x.

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Tags

CCSS.HSF-BF.B.4A

• x ≥ 0

• –2 ≤ x ≤ 10

• x ≥ 10

• x ≥ – 2