Defined Functions

What is the DOMAIN of the function?

• (-∞, +∞)

• (-∞, 4]

• (-∞, 4)

• [0, 4]

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

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

Determine the transformation 

• left 3, up 2

• right 3, up 2

• left 3, down 2

• right 3, down 2

Determine the transformation

• Stretch by factor of 2, left 3

• Shrink by factor of 2, left 3

• Stretch by factor of 2, right 3

• Shrink by factor of 2, right 3

Determine the vertex of the function

• (-2, 5)

• (-2, -5)

• (2, 5)

• (2, -5)

Determine the Domain of the function.

• x > 3

• x < 3

• x > -3

• All Reals