4.7-4.9 Unit Review

What is g(7) if:

• -17
• -13 
• 13       
• 17

What is f(-2)?

• 4
• 1
• 1
• DNE

What is the domain interval for the green piece of this function?

• -2 < x ≤ 1

• -1 < x ≤ 0.5

• x > -2

• x ≤ 1

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

Match the graph with the correct equation.

• 
• 
• 
• 

Find f(2)

• f(2) = 0

• f(2) = 1

• f(2) = 3

• f(2) = 4

1. What is this type of function called?

• Discrete Function 
• Segment Function
• Step Function
• Jump Function

What is the value of f(0)?

• -2
• 2
• 4
• 0

Find x if y = 1

• x = -1
• x = 0
• -2 < x < 1
• x = -3 or x = 2

Which of the following inequalities matches the given graph?

• y ≥ 2/5x + 1
• y ≥ -2/5x + 1
• y≤  2/5x + 1
• y ≥ -2/5x - 1