Function Operations

f(x) = 5x - 7

g(x) = 3x + 10

Find (f + g)(x).

• 8x² + 3

• 8x + 3

• 8x - 3

• 15x² - 70

f(x) = 5x - 7

g(x) = 3x + 10

Find (f - g)(x).

• 2x - 3

• 2x + 17

• 2x + 3

• 2x - 17

f(x) = 6x - 4

g(x) = 2x - 7

Find (f ⋅ g)(x).

• 12x² + 50x - 28

• 12x² - 34x + 28

• 12x² + 28

• 12x² - 50x + 28

p(x) = 3x + 4

q(x) = 2x²

Find p(q(x))

• 10x²

• 18x² + 4

• 6x² + 4

p(x) = 3x + 4
q(x) = 2x²
Find q(p(-2))

• 8
• -8
• 28
• None of these.

• 8

Evaluate f(x) = x² for f(-8)

• 64
• -64
• -16
• 16

Find the inverse of f(x) = -4x - 12

• f^-1(x) = 4x - 3
• f^-1(x) = -1/4x - 3
• f^-1(x) = 1/4x + 3
• f^-1(x) = -4x - 3

• Inverse Functions

• Not Inverse Functions