Question

ABC is located in Quadrant I. Point A is 5 units to the right of the line of reflection. If A'B'C' is the image created by reflection, where is A' relative to the line of reflection?

A.
0 units away, directly on the line of reflection
B.
2.5 units to the left
C.
5 units to the left
D.
10 units to the right

Answer 1

It is probably C. 5 units to the left if the line of reflection is over y-axis. It's like a mirror image.

Answer 2

Option C. 5 units to the left.

Explanation:

A,B,C are the points located in quadrant 1.

If point A is 5 units right to the y-axis (mirror) then after reflection about y-axis (line of symmetry) the new point A' will lie in second quadrant.

As per law of reflection "A point and image of the point formed about the mirror are always in the same plane and equidistant".

Using this property of reflection we can say that option C. 5 units to the left, will be the answer.