Question

If triangle XYZ is reflected across the line y=1 to create triangle X'Y'Z, what is the ordered pair of X'?

Answer 1

x coordinate remains same ... only y coordinate changes.

Answer 2

let \( y_1 \) be the old coordinate and \( y_2 \) be new coordinate then
\( y_2 = -y_1 + 2 \)

Answer 3

Thanks so much ! ; )