Question

What are the coordinates of the vertices of the image of rectangle WXYZ after the transformation Ro, 90•(x,y)? W’(-4,-1)

Answer 1

W (-1, 4) ---> W' (-4, -1)

X (-1, 2) ---> X' (-2, -1)

Y (2, 2) ---> Y' (-2, 2)

Z (2, 4) ---> Z' (-4, 2)

Explanation:

We have with a rectangular figure WXYZ and we are to find the coordinates of its vertices W'X'Y'Z' after the transformation of 90° rotation.

We know that, the rule for 90° rotation of a point (x, y) gives (-y, x).

So,

W (-1, 4) ---> W' (-4, -1)

X (-1, 2) ---> X' (-2, -1)

Y (2, 2) ---> Y' (-2, 2)

Z (2, 4) ---> Z' (-4, 2)