an expression for S(r) that gives the surface area in square inches of any cylindrical can with a specific fixed volume, in terms of its radius r in inches. This is the graph Andre gets if he allows r to take on any value between −1 and 3.

What would be an appropriate range of
function, given the context of the situation?

b. What is the approximate minimum surface
area for the can?

4. The graph of a polynomial function f is shown. Is the degree of the polynomial even
or odd? Explain your reasoning.