Practice: Composition of Functions

Using f(x) = 8x + 5 and g(x) - 7x -2, if you were asked to find f(g(4)) which would you perform first?

• g(4)

• f(4)

Using f(x) = 8x + 5 and g(x) = 7x - 2,

Find f(g(4))

• 213

• 229

• 257

• 208

Using f(x) = 6x + 2 and g(x) = x - 5,

Find f(g(7)).

Tags

CCSS.HSF-BF.A.1C

Using f(x) = 6x + 2 and g(x) = x - 5,

Find f(f(-2)).

Using f(x) = 7x + 4 and g(x) = 2x - 4,

Find g(f(4)).

Using f(x) = 7x + 4 and g(x) = 2x - 4,

Find g(g(-1))

Using f(x) = 5x + 4 and g(x) = x - 3,

Find g(f(x)).

• 5x + 1

• 5x - 15

• 5x - 11

• 5x + 7

Using f(x) = 4x + 3 and g(x) = x - 2,

Find f(g(x)).

• 4x - 5

• 4x - 11

• 4x + 1

• 4x + 5

Using f(x) = 8x and g(x) = 4x + 2,

Find (g°g)(x).

Do not put any spaces in your answer