Solving Functions (Function Notation)

Is this table 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)

Is this graph a function or not a function? 

• Function

• Not a Function

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

How do you read f(x)?

• "f x"

• "f of x"

• "f parenthesis x"

• "f with an x inside parenthesis"

Given h(x) = 5 - 9x, find h(8). 

• h(8) = -360

• h(8) = -67

• h(8) = 31

• h(8) = 77

f(x) is the same thing as ______.

• y

• x

• input

• an equation

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

• (2,7)

• (7,2)

• (14,7)

• (7,14)