Question

The axis of symmetry of a quadratic equation is x = –3. If one of the zeroes of the equation is 4, what is the other zero?

Answer 1

–10

Explanation:

got it right

Answer 2

The other zero for the equation is -10.

Explanation:

If the axis of symmetry is -3, then the other zero would be on the opposite side of it.

Find the distance from the first zero to the line of symmetry:

4 + 3 = 7

Find the other point:

-3 - 7 = -10