Functions

Which graph does NOT pass the vertical line test? A vertical line should only touch one point at a time, if it is a function.

• Graph 1

• Graph 2

• Graph 3

• Graph 4

• This is a Function

• This is Not a Function

Does the graph represent a function? Does it pass the vertical line test?

• Yes, because the vertical line test shows there are no repeating input values

• No, because the vertical line test shows there are repeating input values that have different outputs.

• No, because there are not enough dots to tell

• Yes because the dots are all red

Look at the table.

Is the relation a function?

• Yes

• No

Look at this set of ordered pairs: (4, 13), (1, 12), (6, 9)

Is this relation a function?

• Yes

• No

Look at the graph.

Is this relation a function?

• Yes

• No