Consider the following equations
Stewart Cannery will package tomato juice in a 2L(2000 cubic centimeters) cylindrical can. Find the radius and height if the can is to have a surface area that is less than 1000 square centimeters.
(Hint: Use a rational Inequality on your calculator)
graph the right side of the inequality using x to represent r ... look for where the graph is greater than 0 (i.e. above the x-axis) ... you'll have a range of choices for r. once you pick a value for r, calculate the corresponding value for h that yields the fixed volume.