Identifying and Describing Functions

Front

Is the relation a function? Why?

Back

No, because the x-value 11 has two y-values pair with it.

Front

Is this a function or not a function?

Back

Not a Function

Front

Determine whether the relationship is a function.

Back

Not a function

Front

What is the definition of function?

Back

Every input has only ONE output.

Front

Which graph is NOT a function?

Back

Graph 1

Front

What is a function?

Back

A relation where each input has exactly one output.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if a vertical line crosses the graph more than once, it is not a function.

Front

Can a function have the same output for different inputs?

Back

Yes, a function can have the same output for different inputs.

Front

What is an example of a function?

Back

f(x) = x^2 is a function because each input x has one output.

Front

What is an example of a relation that is not a function?

Back

The relation {(1, 2), (1, 3)} is not a function because the input 1 has two different outputs.