Example 15.1. We define f R->R by f(x)=x3-5.Graph the function f.Then prove that f is one-to-one and onto.Once you have done that,decide what f-l is. How to show that the reverse of f is:g(x)=(x+5)/s Hint: Let f A->B be a bijective function.The inverse of f is the function f-1:B->A defined by f-(y)=x if and only if f(x)=y.Hint: