Question

A figure has a vertex at (-1, -3). If the figure has line symmetry about the x-axis, what are the coordinates of another vertex of the figure?

Answer 1

What is meant by about the x axis
A horizontal line of symmetry at y = -3? It would be another point on the same line at y = -3 so another point that has (x,-3)
or A vertical line of symmetry at x = -1, a point on that line with the value (-1,y)