A function, f, is defined by the set {(2,3), (4,7),(-1,5)}.
If f is reflected in the line y = x,
which of the following points will be in the reflection?

To find the points reflected through y=x, you are really being asked to find the inverse relation. That means we are just swapping x and y per point; like (a,b) to (b,a).

So (2,3) when reflected through y=x becomes (3,2).

(4,7) when reflected through y=x becomes (7,4).

(-1,5) when reflected through y=x becomes (5,-1).

So the inverse relation is:

{(3,2), (7,4),(5,-1)}.

A function, f, is defined by the set {(2,3), (4,7),(-1,5)}. If f is reflected in the line y = x,which of the following points will be in the reflection?​

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A function, f, is defined by the set {(2,3), (4,7),(-1,5)}.
If f is reflected in the line y = x,
which of the following points will be in the reflection?