2.8.1 Function Operations

If g(x)= 4x - 4 and f(x)= 5x + 4, find (g+f)(x)

• 20x

• 9x + 8

• 9x - 8

• 9x

Tags

CCSS.HSF-BF.A.1B

If g(x) = 2x + 2 and f(x) = 3, find (g*f)(x)

• 5x + 2

• 6x + 2

• 6x + 6

• 5x + 6

Given f(x) = 2 and g(x) = -2x + 1, find (f⋅g)(x).

• 4x + 2

• -4x + 2

• -4x +1

• -2x +1

Given g(x)= 4x - 4 and f(x) = 5x + 4, find (g-f)(x)

• 9x

• 9x + 8

• x

• -x - 8

Tags

CCSS.HSF-BF.A.1B

Given g(x)=6 and f(x)=5^x ,find (g*f)(x)

• 30^x

• 6(5^x)

• 11^x

• 5(6^x)

Given f(x)=10^x and g(x)=2, find (f/g)(n)

• 5^x

• 8^x

• 10^x/2

• 2/10^x

Given g(x) = -7x - 9 and f(x) = -4, find (g*f)(x)

• 28x + 36

• -28x + 36

• -28x - 36

• 28x - 36

Given g(x) = 4x - 4 and f(x) = 5x + 4, find (f-g)(n)

• 9x + 8

• 9x - 8

• x + 8

• x - 8

Given f(x) = 2x and g(x) = 2x - 7, find (f+g)(x).

• -4x - 7

• 4x - 7

• 4x - 14

• -4x + 14

f(x) = 2x and g(x) = 2x - 7

Find (f - g)(x).

• 4x - 7

• -7

• 7

• 4x + 7