What is the equation for the line of reflection

Question

asked Dec 9, 2020 113k views

2 Answers

Cannin · Answer 1 · 2020-12-10T10:36:30+0000

Answer:

The correct option is B.

Explanation:

The coordinates of polygon ABCDE are A(-2,2), B(-1,2), C(1,1), D(0,-1) and E(-2,1).

The coordinates of polygon A'B'C'D'E' are A'(2,2), B'(1,2), C'(-1,1), D'(0,-1) and E'(2,1).

The relation between preimage and image is

$P(x,y)\rightarrow P'(-x,y)$

From the given figure it is clear that the figure ABCDE reflected across the y-axis.

If a figure reflected across the y-axis, then

$(x,y)\rightarrow (-x,y)$

The equation of y-axis is x=0, so the given figure reflected across x=0.

Therefore the correct option is B.