1. (2.1) Can a limit exist for a function f at a certain number c even though the function f is not dened at x=c? Explain your answer. 2. (2.2) For a given rational function f, how can you determine what the limit is for the function f as x approaches positive or negative innity? 3. (2.3) Describe an example of a function in which it is not continuous. 4. (2.4) Give one interpretation of the Derivative and where it can be used in math. 5. (2.5) Explain why the following statement is either true or false: The derivative of a product is the product of the derivatives. 6. (2.7) For an application problem involving the cost of producing a certain item, interpret the meaning of both Exact Cost and Marginal Cost