Problem

Postage Rates In 2013, the retail flat rate in dollars for first-class mai...

Postage Rates In 2013, the retail flat rate in dollars for first-class mail weighing up to 5 ounces could be computed by the piecewise constant function ƒ, where x is the number of ounces.

(a) Evaluate ƒ(1.5) and ƒ(3). Interpret your results.

(b) Sketch a graph of ƒ. What is its domain? What is its range?

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Solutions For Problems in Chapter 2.5

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