Mathematics
Mathematics
Problem
56. Writing to Learn Let be the function that gives the cost, in cents, to mail a first-class package that weighs ounces. In August of 2009, the cost was 1.22$ for a package that weighed up to 1 ounce, plus 17 cents for each additional ounce or portion thereof (up to 13 ounces). (Source: United States Postal Service.) (a) Sketch a graph of . (b) How is this function similar to the greatest integer function? How is it different?| Packages | |
|---|---|
| Weight Not Over | Price |
| 1 ounce | 1.22$ |
| 2 ounces | 1.39$ |
| 3 ounces | 1.56$ |
| 4 ounces | 1.73$ |
| 5 ounces | 1.90$ |
| 6 ounces | 2.07$ |
| 7 ounces | 2.24$ |
| 8 ounces | 2.41$ |
| 9 ounces | 2.58$ |
| 10 ounces | 2.75$ |
| 11 ounces | 2.92$ |
| 12 ounces | 3.09$ |
| 13 ounces | 3.26$ |