Question

10. The point P(a, b) is first reflected in the origin
and then reflected in the y-axis to P'. If P' has
co-ordinates (4, 6); evaluate a and b.​

Answer 1

Step-by-step explanation:

The co-ordinates of image of P (a, b) reflected in origin are (-a, -b).

Again, the co-ordinates of P’ which is image of the above point (-a, -b) reflected in the y-axis are (a, -b).But the co-ordinates of P’ are (3, -4)Thus, a = 3 and -b = -4 ⇒ b = 4

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