The 2014 domestic postage rate for first-class letters weighing 3.5 oz or less is 49 cents for the first ounce (or less), plus 21 cents for each additional ounce (or part of an ounce). Express the postage Pas a piecewise defined function of the weight x of a letter, with o

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
ChapterP: Prerequisites
SectionP.7: A Library Of Parent Functions
Problem 47E
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The 2014 domestic postage rate for first-class letters weighing 3.5 oz or less is 49 cents for the first ounce (or less), plus 21 cents for each additional ounce (or part of an ounce). Express the postage P as a piecewise defined function of the weight x of a letter, with 0 < xs 3.5.
(Express your answer in dollars.)
if 0 <xs1
if 1 <xs 2
P(x) =
if 2 < xs 3
if 3 < xs 3.5
Sketch a graph of this function.
P
P
1.20-
1.20-
1.00
1.00
0.80
0.80
0.60
0.60
0.40
0.40-
0.20
0.20-
1
3
4
1
3
4.
P
1.20
1.20
1.00
1.00
0.80
0.80
0.60
0.60
0.40
0.40
0.20
0.20
3
Transcribed Image Text:The 2014 domestic postage rate for first-class letters weighing 3.5 oz or less is 49 cents for the first ounce (or less), plus 21 cents for each additional ounce (or part of an ounce). Express the postage P as a piecewise defined function of the weight x of a letter, with 0 < xs 3.5. (Express your answer in dollars.) if 0 <xs1 if 1 <xs 2 P(x) = if 2 < xs 3 if 3 < xs 3.5 Sketch a graph of this function. P P 1.20- 1.20- 1.00 1.00 0.80 0.80 0.60 0.60 0.40 0.40- 0.20 0.20- 1 3 4 1 3 4. P 1.20 1.20 1.00 1.00 0.80 0.80 0.60 0.60 0.40 0.40 0.20 0.20 3
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