Question

On a coordinate plane, 2 triangles are shown. The first triangle has points M (negative 5, 4), N (negative 3, 2), and L (negative 6, 2). The second triangle has points N prime (3, 2), M prime (5, 4), and L prime (6, 2).
What is the rule for the reflection?

ry-axis(x, y) → (–x, y)
ry-axis(x, y) → (x, –y)
rx-axis(x, y) → (–x, y)
rx-axis(x, y) → (x, –y)

Answer 1

ry-axis (x, y) → (–x, y)

(Reflection across the y‑axis changes the sign of the x‑coordinate: e.g. (−5,4) → (5,4), (−3,2) → (3,2).)