Question

mirror image of the point (9 -8) in y-axis is​

Answer 1

Answer:

Hey mate here is your answer.

Explanation:

Let B(h,k) be the image of A(1,2) w.r.t the mirror x−y=0

⇒

1

h−1

=

−1

k−2

=

2

−2(−1)

⇒h−1=−k+2=1

⇒h=2,k=1

So, the image of A is B(2,1)

Let the image of B(2,1) w.r.t the mirror y=0 be C(α,β)

⇒

0

α−2

=

1

β−1

=

1

−2(1)

⇒α=2,β=−1