1.1.4 and 1.1.5 Composition of Functions

f(x) = 3x + 10
g(x) = x - 2
Find f(g(5))

• 19
• 23
• -10
• None of these.

Tags

CCSS.HSF-BF.A.1C

f(x) = 3x + 10

g(x) = x - 2

Find g(f(-10))

• -42

• -26

• -18

• -22

f(x) = 5x - 2

g(x) = x + 6

Find g(f(2))

• 64

• 38

• 14

• None of these.

Given f(x) = x + 15

and g(x) = 2x

Find f(g(3))

• 21

• 23

• 36

• None of these.

Given f(x) = x - 9

and g(x) = 2x + 1

Find f(g(0))

• 0

• -8

• -17

• None of these.

f(x) = 3x + 10
g(x) = x - 2
Find f(g(x))

• 3x² - 2
• 3x + 8
• 3x + 4
• None of these.

If f(x) = 5x and g(x) = 2x-1,

what is the composition f(g(x)) ?

• 10x-1

• 10x-5

• 5x²-1

• 5x²-5

Tags

CCSS.HSF-BF.A.1C

If f(x) = x-1 and g(x) = 2x,

what is and g(f(x)) ?

• 2x²-1

• 2x-1

• 2x-2

• x-2

Tags

CCSS.HSF-BF.A.1C

When f(x) = 4x+8 and

g(x) = x+3, find

f(g(x))

• 4x + 11

• 4x + 20

• 4x²+12x+24

• 5x + 11

If f(x) = x and g(x) = 2x+ 1,

what is and g(f(x)) ?

• 2x²-1

• 2x+1

• 2x-2

• x-2