does the equation define y as a function of x?

Question

x=y²

^{a.) yes}

^{b.) no}

Answer 1

Hi Victoria R

Check the definition of a function then rewrite your equation as

√x = y

Try a few values to see if it meets the criteria for a function; for example:

√16 = ±4

16 = 4²

16 = (-4)²

Can you continue from here?

Also you can graph x = y² to see if there is only one x for only one y.