Answer:
(a) (9, -4)
(b) (-9, 4)
Step-by-step explanation:
Reflection in the x-axis
When reflecting a point across the x-axis, the x-coordinate stays the same but the y-coordinate becomes its additive inverse.
Mapping rule: (x, y) → (x, -y)
Therefore:
Reflection in the y-axis
When reflecting a point across the y-axis, the y-coordinate stays the same but the x-coordinate becomes its additive inverse.
Mapping rule: (x, y) → (-x, y)
Therefore:
