In two or more complete sentences , explain how to use ordered pairs of points in f(x) = 2x + 5 and g(x) = x - 5/2 tp determine if f(x) and g(x) are inverses of each other.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.