Question

9. Find the glide reflection rule that maps Triangle NOP to Triangle N'O'P'.
1 point

(x, y) --> (x - 1, y + 4) and reflect across x = -1
(x, y) --> (x + 4, y -1) and reflect across x = -1
(x, y) --> (x - 1, y + 4) and reflect across y = -1
(x, y) --> (x + 4, y - 1) and reflect across y = -1

Answer 1

I'll test point P (0,-4) with its reflection point (4,-5).  We see that x increased by 4 and y decreased by 1.  Then we see that is reflected over some y value.

So the answer is (d) (the last one).