Quiz on Piecewise and Composition of Functions

A house painter charges $12 per hour for the first 40 hours he works, $18 for the ten hours after that, and $24 for all hours after that.

How much does he earn for a 70 hour week?

• $1020

• $1140

• $840

• He works for free!

Use the graph to evaluate f(9).

• 0
• 2
• 4
• 6

Tags

CCSS.HSF.IF.A.2

How much does it cost to rent the Karaoke machine for 3 days?

• $50
• $100
• $150
• $175

Tags

CCSS.HSF.LE.B.5

How much does it cost to make 300 photocopies?

• $24.00
• $20.00
• $40.00
• $300.00

Tags

CCSS.HSF.LE.B.5

g(x)=3x+4
h(x)=3x-1
Find (g∘h)(x)

• -9x+11
• 4x²+4x
• 9x+1
• 9x+11

Tags

CCSS.HSF-BF.A.1C

f(g(x))

• 3x - 16

• 3x - 2

• 3x - 26

• 4x - 2

Tags

CCSS.HSF-BF.A.1C

If f(x) = x-5 and g(x) = 3x²-1,

what is (f ° g)(x) ?

• 3x²-5

• 3x²-1

• 3x²-4

• 3x²-6

Tags

CCSS.HSF-BF.A.1C

Given f and g in the graph,

what is f(f(3)) ?

• 3

• 2

• 4

• 1

Tags

CCSS.HSF-BF.A.1C

find h(f(-1))

• -5

• 4

• -4

• 12

Tags

CCSS.HSF-BF.A.1C

• 14

• 15

• 16

• 17

Tags

CCSS.HSF-BF.A.1C