Solve Piecewise Functions

What is f(x) when x equals 4?

• -5

• 0

• 3

• 6

What is f when x equals 0?

• -5

• 0

• 1/2

• 1

Evaluate this function for x=2

• f(2) = 4

• f(2) = 3

• f(2) = -3

• f(2) = 5

A piecewise function (f(x)) is shown in the graph. What is f when x equals -4?

• -4

• -2

• 0

• Does not exist

What is the RANGE?

• (-∞, +∞)

• (-2, +∞)

• [-2, +∞)

• (-∞, 0) U (0, +∞)

Write 5|x-2|-3 as a piecewise function. 

• 5x-13 for x>=2 and -5x+7 for x<2

• 5x-13 for x>2 and -5x-13 for x<=2

• 5(x-2)-3

• 5x-5 for x<3 and -5x-5 for x>=3

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

• x ≥ 1

• x ≥ 2

• 2 ≤ x < 6

• 1 ≤ x < 3

The amount Lea can earn at her job is shown:
She earns $7 per hour for the first 40 hours. 
She earns 1.5 times the hourly wage for every hour over 40 hours. 
Which piecewise-defined function best represents Lea’s weekly pay, P(h), where h represents the hours worked?

• P(h)= 7h,   0≤h≤40
  P(h)=10.5h−140,   h>40

• P(h)= 7h,   0<h<40
  P(h)= 10.5h−140,     h>40

• P(h)= 7h,     0≤h≤40
  P(h)= 10.5h+140,     h≥40

• P(h)=   7h, 0<h<40  P(h)= 10.5h+140,   h≥40

The piecewise-defined function f(x) is shown. 
f(x)=x+2,   x≤0
f(x)=4x,     x>0
What is f(−3)?

• 12

• 5

• -1

• -12

What is f(-4)?

• -4

• 2

• -2

• 4