Respuesta :

(0, -3) would be the answer.
(0 , -3)

The rule when flipping across the x-axis is (x , y) becomes (x , -y).

In this case, our (0 , 3) becomes negative in the y-value. Therefore, the 3 becomes -3 and the x stays the same, so we have (0, -3)

Hope I've helped!

:D