1.6 Function Operations Review

f(x) = 5x - 7

g(x) = 3x + 10

Find (f + g)(x).

• 8x² + 3

• 8x + 3

• 8x - 3

• 15x² - 70

Tags

CCSS.HSF-BF.A.1B

f(x) = 5x - 7

g(x) = 3x + 10

Find (f - g)(x).

• 2x - 3

• 2x + 17

• 2x + 3

• 2x - 17

Tags

CCSS.HSF-BF.A.1B

f(x) = 5x - 7

g(x) = 3x + 10

Find (g - f)(x).

• 2x - 3

• -2x + 3

• -2x + 17

• 2x - 17

Tags

CCSS.HSF-BF.A.1B

f(x) = 5x - 7

g(x) = 3x + 10

Find (f ⋅ g)(x).

• 15x² - 70

• 15x - 70

• 15x² + 31x - 70

• 15x² + 29x - 70

Tags

CCSS.HSF-BF.A.1B

f(x) = x² - 5x - 8

g(x) = 4x² - x + 3

Find (f + g)(x).

• 5x⁴ - 6x² - 5

• 4x² + 5x + 5

• 4x² + 5x - 5

• 5x² - 6x - 5

Tags

CCSS.HSF-BF.A.1C

f(x) = x² - 5x - 8

g(x) = 4x² - x + 3

Find (f - g)(x).

• -3x² + 6x + 11

• -3x² + 4x - 5

• -3x² - 4x - 11

• -3x² - 6x - 5

Tags

CCSS.HSF-BF.A.1B

When f(x) = 2x and g(x) = x² + 3 , find f(g(x)).

• x² + 2x + 3

• 4x² + 3

• 2x² + 3

• 2x² + 6

Tags

CCSS.HSF-BF.A.1C

p(x) = 3x + 4

q(x) = 2x²

Find p(q(x))

• 10x²

• 18x² + 4

• 6x² + 4

Tags

CCSS.HSF-BF.A.1C

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

• 8
• -8
• 28
• None of these.

Tags

CCSS.HSF-BF.A.1C

f(x) = 6x-8
g(x) = -4x-7
Find 3f(x)-g(x). 

• 22x-17
• 14x-31
• 22x-31
• 10x-1

Tags

CCSS.HSF-BF.A.1B