Understanding Functions and Their Graphs

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

What is the test to determine if a graph represents a function?

• Horizontal line test

• Vertical line test

• Heidelberg Uncertainty Test

• Obi Wan Kenobi Test

The range is all the ______.

• X-values

• Y-values

• Positive numbers

• Negative numbers

The x-values of a function can also be called...

• the dependent values

• the algebra numbers

• the domain

• the range

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

Is this set of ordered pairs a function or not a function?

• Function

• Not a Function

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

Is this table a function or not a function?

• Function

• Not a Function