Piecewise Pay

Which piecewise function corresponds to this graph? (pay close attention to the inequality signs)

• 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

• A
• B
• C
• D

What are the domain restrictions for the red (1st line) piece of this function?

• x ≤ -2

• x ≤ 1.5

• x > -2

• x ≤ -1

What is g(7):

• -17

• -13 

• 13       

• 17

What is f(-2)?

• 4

• 1

• 1

• DNE

What is f(1)?

• 3

• 1

• 0

• 2

For a cellular phone billing plan, $50 per month buys 400 minutes or less. Additional time costs $0.30 per minute. Let the monthly cost C(x) be a function of the time x.

Which piecewise function represents this situation?

• 
• 
• 
• 

Functions that are made up of distinct "pieces" of other functions defined over different intervals are called

• Absolute Value Functions

• Piecewise Functions

• Exponential Functions

• Quadratic Functions

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

• x ≥ 1

• x ≥ 2

• 2 ≤ x < 6

• 1 ≤ x < 3

The following piecewise function gives the cost, c(x), of a classified ad in a car magazine.<\/p>

What is the cost of 8 lines?<\/p>

• $61.75<\/p>

• $46.00<\/p>

• $35.50<\/p>

• $56.50<\/p>