Definition of a Function

Which graph represents a function? Select all that apply.

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• 
• 
• 

Determine whether the mapping diagram represents a function.

• Function

• Not a function

Determine whether the mapping diagram represents a function.

• Function

• Not a function

Determine whether the table of values represents a function.

• Function

• Not a function

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

Does the mapping of these points represent a function? (Note: the left oval represents your x values and the right oval represents your y values)

• Function

• Not a Function

Determine whether the table of values represents a function.

• Function

• Not a function

State the domain:

• (-oo, 7) U (7, oo)

• (-oo, -7) U (7, oo)

• (7, oo)

• [7, oo)

State the domain:

• (-oo, 4)

• (-oo, 2]

• [2, oo)

• [4, oo)

State the domain

• (-oo, oo)

• [0, oo)

• (-oo, 0]

• (-oo, 0) U (0, oo)