Algebra II Functions Review

Is this graph a function or not a function? 

• Function

• Not a Function

Is this mapping a function or not a function? 

• Function

• Not a Function 

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

What is the definition of function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Which set of ordered pairs represents y as a function of x?

• {(−9, 2), (0, 6),
  (1, −2), (−3, 6)}

• {(−1, 0), (4, 3),
  (−7, −3), (−1, −8)}

• {(3, 2), (−4, −2),
  (3, 1), (−4, 1)}

• {(5, 4), (2, 3),
  (1, 1), (2, 4)}

Is this is a function or not a function?

• Function

• Not a Function

The initial weight of a container is 6.2 pounds. As water is added to the container, the weight increases at a rate of 0.6 pounds per minute. Which function models the weight of the container as a function of time?

• f(t)=0.6t+6.2

• f(t)=t+6.8

• f(t)=6.2-0.6t

•                                           f(t)=6.2t+0.6

For the function f(x) = -3x + 3 find f(0).

• 0

• -3

• 3

• -1

Evaluate f(-2) if f(x) = x²+ 3.

• -1

• 1

• 7

• -7

Which graph does NOT pass the vertical line test?

• Graph 1

• Graph 2

• Graph 3

• Graph 4