Function Composition

• 9 - √17
• 4
• 2
• √8

Find f[g(5)]

• 30

• 242

• 92

• 2

f(g(x))

• 3x - 16

• 3x - 2

• 3x - 26

• 4x - 2

(f + g) (x)

• 5x² + 3x

• 4x² + 3x

• 5x² - 3x

• 4x² - 40x

If f(x) = 3x-1 and g(x) = x²+2,

what is (f ° g)(x) ?

• 3x² +5

• x² +1

• 3x² +1

• 3x² +6

If f(x) = x-5 and g(x) = 3x²-1,

what is (f ° g)(x) ?

• 3x²-5

• 3x²-1

• 3x²-4

• 3x²-6

Given f and g in the graph,

what is (f ° g)(-1) ?

• 1

• 4

• -1

• 6

Given f and g in the graph,

what is f(f(3)) ?

• 3

• 2

• 4

• 1

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

• x²+2x+3
• 4x²+3
• 2x²+3
• 2x²+6

f(x) = x²+9
g(x) = x-9
Find f(x)-g(x). 

• x²+x+9
• x²-x+9
• x²-x
• x²-x+18