Problem

Graph the function.The accompanying table gives rates charged by the U.S. Postal Service f...

Graph the function.

The accompanying table gives rates charged by the U.S. Postal Service for first-class letters in January 2009. Graph the function f(x) that gives the price of mailing a first-class letter, where a represents the weight of the letter in ounces and 0 ≤ x ≤ 3.5.

Weight Not Over

Price

1 ounce

$0.42

2 ounces

$0.59

3 ounces

$0.76

3.5 ounces

$0.93

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