I need help with a question on my marth hw. it is "A function, f, is defined by the set {(2,3), (4,7), (-1,5)}. If f is reflected in the line y=x, which point will be in the reflection?"
If a point (a,b) is reflected in the line y=x, it becomes the point (b,a).
So, the reflection of the point (2,3) is the point (3,2), etc.
