Newsletters A newsletter has a maximum audience of 100 subscribers. The publisher estimates that she will lose 1 reader for each dollar she charges. Therefore, if she charges x dollars, her readership will be (100 – x).

  

a. Multiply this readership by x (the price) to find her total revenue. Multiply out the resulting quadratic function.

  

b. What price should she charge to maximize her revenue? [Hint: Find the value of x that maximizes this quadratic function.]