W(-7,-4) indicates the reflection across y=x. (x,y) transformed to (y,x). w(-7,-4) =w(7,4).
w'(7,-4) indicates the reflection across y-axis. (x,y) is transformed to (-x,y). w(-7,-4) = w(7,-5).
Explanation:
The rules for reflecting over the X axis is to negotiate the value of the y coordinate of each point and x is same.
After reflection the coordinates of the figure can be determined. If you reflect over the x-axis, then keep the x-coordinate and take the opposite of y- coordinate. If you reflect over y-axis, then take the opposite of x- coordinate and keep y- coordinate.
