Can I just use the same logic Greg explained for reflection across axes?
Reflecting across an axes is going to be different. If you are reflecting over the x-axis, the point (a,b) is going to become (a, -b). The x-coordinate wouldn’t change.
On the other hand, if you are reflecting over the y-axis, the point (a, b) would become (-a, b).
When you rotate 90 degrees, there is potential for both the x and y coordinate to change. Try drawing out some examples and see what you notice!
2 Likes
you’re right. Thanks!