Functions, Functions, Functions

Front

What is the domain of the function {(0,1), (1,-3), (2,-4), (-4,1)}?

Back

D: {0, 1, 2, -4}

Front

What is the range of the function {(0,1), (1,-3), (2,-4), (-4,1)}?

Back

R: {1, -3, -4}

Front

What does it mean for a relation to be a function?

Back

A relation is a function if each x-value has only one y-value associated with it.

Front

Is the relation {(11,2), (11,3)} a function? Why?

Back

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

Front

What are all of the x values or inputs in a function called?

Back

Domain

Front

What are all of the y values or outputs in a function called?

Back

Range

Front

How can you determine if a graph represents a function?

Back

A graph represents a function if any vertical line drawn intersects the graph at most once.

Front

Is the graph of y = x^2 a function?

Back

Yes, it is a function.

Front

Is the graph of y = √x a function?

Back

Yes, it is a function.

Front

Is the graph of y = 1/x a function?

Back

Yes, it is a function.