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Sagot :
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:
- (9, 4) → (9, -4)
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:
- (9, 4) → (-9, 4)

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