8.5G Functions

Front

What is a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

Which of the following is a function: W, X, Y, Z?

Back

Z is a function.

Front

Is this mapping a function or not a function?

Back

It is a function.

Front

Is the relation a function? Why?

Back

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

Front

Which of the following is a function: A, B, C, D?

Back

D is a function.

Front

What is the vertical line test?

Back

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

Front

What is an input in a function?

Back

An input is the value you provide to a function, typically represented as x.

Front

What is an output in a function?

Back

An output is the value that results from applying the function to an input, typically represented as y.

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 a mapping diagram?

Back

A visual representation of a function that shows how each input is paired with an output.