Piecewise Defined Functions

What is f when x equals 4?

• -5

• 0

• 3

• 6

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

• -2 < x ≤ 1

• -1 < x ≤ 0.5

• x > -2

• x ≤ 1

Which type of function does the graph represent?

• Horizontal Function

• Linear Function

• Step Function

• Exponential Function

What is f(2)?

• 0

• 1

• 2

• -1

What is f(2)?

• 0

• -5

• -2

• 1

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

What is the equation of the graph below? You can click the picture to zoom in!

• f(x) = I x + 2 I 

• f(x) = I x  I + 2

• f(x) = I x  I - 2

• f(x) = I x - 2 I 

What is the equation of the graph below? You can click the picture to zoom in!

• y = - | x + 2| + 4

• y = - | x - 2| + 4

• y = | x - 2 | + 4

• y = | x - 2| - 4

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

• $50

• $100

• $150

• $175

How much would postage cost for a letter that weighs 2.1 ounces?

• 41 cents

• 39 cents

• 45 cents

• 43 cents