Question

The vertices of triangle jkl are j(-2,1), k(2,-3), and l(2 2). The triangle is reflected over the line y=x. Graph triangle jkl and triangle j’k’l’.

Answer 1

When you reflect an figure across the line y=x, the x- and y-coordinates switch places.  This means that J' will be at (1, -2), K' will be at (-3, 2); and L' will be at (2, 2).