Question

.

If a point P(–2, 1) is reflected across the line x = –1, what are the coordinates of its reflection image?

A.



(0, 1)


B.



(4, 1)


C.



(–2, –3)


D.



(–2, 1)

Answer 1

A.(0,1)

Answer 2

how did you get that..

Answer 3

A reflection basically finds the point equidistant to the line of reflection on the opposite side of it.

So, if we look at the point and the line on a coordinate plane (pretending I have a grid here), we see this:

Answer 4

As said by acces denied

Answer 5

okay i really missed the actual position there, but if we're going to find the point on the opposite side, we just move an equal distance in the opposite direction from the line to find the image of that reflection.