Question

Which equation has both -3 and 3 as possible values of y?

A
y^2=6

B
y^2=8

C
y^2=9

D
y^2=64

Answer 1

C.
`y^2=9`

Explanation:

1.
`y^2 = 9`

2.
`y = \frac{+}{}√(9)`

3. Equation solutions:

`y_(1) = 3\\y_(2) = -3`