Assume that postage rates are $44 é$ for the first ounce, plus $17 \notin$ for each additional ounce, and that each letter carries one $44 \notin$ stamp and as many $17 \notin$ stamps as necessary. Graph the function defined by $y=p(x)=$ the number of stamps on a letter weighing $x$ ounces. Use the interval $(0,5]$.