The vertices of △JKL have the following coordinates: J(1, 0), K(3, 4), L(1, 4). If △JKL is reflected over the x-axis, what are the new coordinates for Vertex L?

Question

The vertices of  △JKL  have the following coordinates: J(1, 0), K(3, 4), L(1, 4). If  △JKL  is reflected over the x-axis, what are the new coordinates for Vertex L?

A. (1,-4)

B. (-1,4)

C. (-1,-4)

D. (1,4)

Answer 1

When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is taken to be the additive inverse. The reflection of point (x, y) across the x-axis is (x, -y). Therefore, (1,4) would become A (1,-4)