Question

Reflect the point (-9, 0) across the x axis

Answer 1

This point can't be reflected across the x axis.

Why not, though? It's because the way to reflect a point across the x axis is by making its y value negative. Because you can't make 0 negative, it just results in (-9, 0). In case you mistyped it to x when it was supposed to be y though, your answer would be (9, 0).