In 2014, the U. S. Postal Service would deliver a first-class letter weighing 3.5 ounces or [8] less for the following prices: not more than 1 ounce, 49c; more than 1 ounce but not more than 2 ounces, 70c; more than 2 ounces but not more than 3 ounces, 91c; and more than 3 ounces but not more than 3.5 ounces, 1.12$. This information determines the price (in cents) as a function of the weight (in ounces). Define this function and at which values in open interval (0, 3.5) is this function discontinuous?