Piecewise Functions

Using the pictured graph, what is f(-3)? 

• -3
• -1
• 1
• 3

Which piecewise function corresponds to this graph? (Take your time)

• f(x) = { x  if x < 4;   -x+1  if x ≥ 4
• f(x) = { x  if x ≤ 4;  -x+1  if x > 4
• f(x) = { -x+1  if x < 4;  x  if x ≥ 4
• f(x) = { -x+1  if x ≤ 4;  x if x > 4

What are the domain restrictions for the green piece of this function?

• -2 < x ≤ 1
• -1 < x ≤ 0.5
• x > -2
• x ≤ 1

Find f(-2)

• -3
• 6
• 8
• -6

Match the graph with the correct equation.

• 
• 
• 
• 

Find f(2)

• f(2) = 0

• f(2) = 1

• f(2) = 3

• f(2) = 4

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!

Which graph matches:

-x+4 if x < 2

2x-6 if x ≥ 2

• A

• B

• C

• D

When x is less than or equal to 2, what equation is shown in the graph?

• f(x) = 3

• f(x) = x

• f(x) = | x |

• f(x) = | x - 1 |

What is g(7) if:

• -17
• -13 
• 13       
• 17