Algebra Function Notation

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)

What is the definition of a function?

• Has inputs and outputs

• Every input has only ONE output

• Inputs have different outputs every time

• x-values and y-values

Is this table a function or not a function? 

• Function

• Not a Function

Evaluate f(-2) if f(x) = x²+ 3

• -1

• 1

• 7

• -7

For the function f(x) = -3(x-1) find f(0).

• 0

• -3

• 3

• -1

Evaluate f(-5) if f(x) = -2x - 12

• -22

• -2

• -19

• -5

If f(x) = 7, what is the value of x?

f(x) = 3x+1

• 2

• 3

• 8