Is it a function?

Front

Is this a function? Explain.

Back

Yes; it passes the vertical line test.

Front

What is the definition of a function?

Back

Every input has only ONE output.

Front

What does it mean if a graph passes the vertical line test?

Back

It means that for every x-value, there is only one corresponding y-value.

Front

What does it mean if a graph does NOT pass the vertical line test?

Back

It means that there is at least one x-value that corresponds to multiple y-values.

Front

Identify whether this graph is a function or not a function: (insert graph).

Back

Function.

Front

What is an example of a function?

Back

y = 2x + 3 is a function because each x-value has one y-value.

Front

What is an example of a not a function?

Back

y^2 = x is not a function because each x-value can have two y-values.

Front

What is the horizontal line test?

Back

If any horizontal line intersects the graph more than once, it is not a function.

Front

What is the difference between a function and a relation?

Back

A function is a specific type of relation where each input has exactly one output.

Front

Can a vertical line ever represent a function?

Back

No, a vertical line represents multiple y-values for a single x-value.