Evaluating Function Notation

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)

Is this graph a function or not a function? 

• Function 

• Not a Function

Which graph does NOT pass the vertical line test?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Is this graph a function or not a function? 

• Function

• Not a Function

Select ALL of the functions.

• { (a,z) , (b,z) , (c,z) }

• 
• 
• 

Evaluate f(-2) if f(x) = x + 3

• -1

• 1

• 5

• -5

Is the following graph a function? Explain.

• Yes, because no x-value repeats.

• Yes, because they are individual dots.

• No, because the x repeats.

• No, because it is not a line.

Given the function, f, shown on the graph, what is the value of f(3)?

• 0

• 2

• 6

• 1

What point is represented by g(7) = 14 ?

• (2,7)

• (7,2)

• (14,7)

• (7,14)

Find f(2)

• 5

• 4

• 3

• 0