Question

The vertices of a triangle are P(-2, -3), Q(-4,-2), and R(4,8). What are the vertices of the image reflected across the x-axis?

Answer 1

The rule for a reflection over the x-axis is (x,y)→(x,−y)

the vertices of the triangle are in red and the vertices of the reflected images are in blue

the vertices are

P'=-(-2,3)

Q'=(-4,2)

R'=(4,-8)