Do rational expressions contain exponential functions? a. always b. sometimes c. never

In doing rational expression, it is not always that it uses exponential function because there are times that it uses it. But clearly, there is never a time it does not used it. So the correct answer to the question is letter B. sometimes. They sometimes use exponential functions in rational expressions.

Aquadratic function is one of the form f(x)=ax2 + bx + c l, where a,b, and c are numbers with are not equal to zero.