Question

the vertices of tri. PQR are P(-3,8), Q(-6,-4) and R(1,1). If you reflect tri. PQR across the x-axis , what will be the coordinates of the vertices of the image tri P'Q'R?

Answer 1

P(-3,-8) Q(-6,4) R(1,-1). Because it reflects over the x-axis the x values stay the same and the y values change signs.