Question

Give the coordinates of the point obtained from each reflection. (a) Reflect the point (-3, 7) across the y-axis: 00 (b) Reflect the point (-3, 7) across the x-axis: (01)​

Answer 1

a) Rule for reflection across y - axis:

• (x, y) → (-x, y)
• (-3, 7) → (3, 7)

b) Rule for reflection across x - axis:

• (x, y) → (x, -y)
• (-3, 7) → (-3, -7)