Piecewise Functions

What is f when x equals 4?

• -5

• 0

• 3

• 6

A piecewise function (f(x)) is shown in the graph. What is f when x equals 0?

• -4

• 0

• 1

• Does not exist

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

Which graph matches:
4-x for x<2
2x-6 for x>=2

• A

• B

• C

• D

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

• -2 < x ≤ 1

• -1 < x ≤ 0.5

• x > -2

• x ≤ 1

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

• x ≥ 1

• x ≥ 2

• 2 ≤ x < 6

• 1 ≤ x < 3

What is the domain restriction of the blue piece of this function?

• x > 0

• x ≥ 0

• x > 2

• x ≥ 2

What is f when x equals 0?

• -5

• 0

• 1/2

• 1

What is f when x equals 8?

• 0

• 5

• 11

• 16