Question

Traingle A(1,8), M(6,8). P(2,3), is reflected over the x axis and then rotated 90degrees clockwise. What are the coordinates of its image A'M'P'?

Answer 1

Reflection over the x-axis transforms the point (x,y) into (x, -y), then

A(1,8) → A''(1, -8)

M(6,8) → M''(6, -8)

P(2,3) → P''(2, -3)

Rotation 90° clockwise transform the point (x, y) into (y, -x), then

A''(1, -8) → A'(-8, -1)

M''(6, -8) → M'(-8, -6)

P''(2, -3) → P'(-3, -2)