Functions and Operations

What are you looking forward to this year/semester??

What time did you go to bed last night??

Evaluate for f(1)

• 0

• -3

• 3

• 2

• 4

Given that f(x) = x² - 8, find f(2) - f(3).

• -7

• 5

• -1

• -5

• 7

What is f(-2)?

• 4
• 1
• 1
• DNE

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

What is the DOMAIN?

• (-∞, +∞)
• (-∞, -1] U [3, +∞)
• [-1, +∞)
• (-1, 0] U (0, +∞)

What is the RANGE of the function?

• (-∞, +∞)
• (-∞, 4]
• (-∞, 4)
• [0, 4]

What is the equation of the absolute value function?

• f(x)= |x+4|
• f(x)= |x-4|
• f(x)= |x| + 4
• f(x)= |x| - 4