College Algebra (11th Edition)

{(-1,3),(0,5),(5,0),($\frac{2}{3}$,4)}
Here, each x-value has only one y-value, and vice versa, each y-value has only one x-value. Therefore this function is one-to-one. We get the inverse by interchanging the x- and y-values in every pair:{(-1,3),(0,5),(5,0),($\frac{2}{3}$,4)}