MC Qu. 39 Use the data in the table...
Use the data in the table below to answer the following question.
Price | Quantity Demanded |
$20 | 12 |
18 | 17 |
16 | 20 |
14 | 24 |
12 | 30 |
10 | 36 |
8 | 40 |
6 | 44 |
4 | 48 |
Over which price range is the demand elastic?
Multiple Choice
$8-$10
$14-$16
$6-$8
$4-$6
Demand is elastic in the upper portion of the demand curve
P | Q | Q2-Q1 | (Q2+Q1/2) | PER CHANGE IN Q | P2-P1 | (P2+P1/2) | PERC CHANGE IN P | E |
20 | 12 | |||||||
18 | 17 | 5 | 23 | 0.217391 | -2 | 28 | -0.07143 | -3.04 |
16 | 20 | 3 | 28.5 | 0.105263 | -2 | 25 | -0.08 | -1.32 |
14 | 24 | 4 | 34 | 0.117647 | -2 | 22 | -0.09091 | -1.29 |
12 | 30 | 6 | 42 | 0.142857 | -2 | 19 | -0.10526 | -1.36 |
10 | 36 | 6 | 51 | 0.117647 | -2 | 16 | -0.125 | -0.94 |
8 | 40 | 4 | 58 | 0.068966 | -2 | 13 | -0.15385 | -0.45 |
6 | 44 | 4 | 64 | 0.0625 | -2 | 10 | -0.2 | -0.31 |
4 | 48 | 4 | 70 | 0.057143 | -2 | 7 | -0.28571 | -0.20 |
E = percentage change in demand/Percentage change in price
E = [Q2-Q1/(Q2+Q1/2)] / [P2-P1/(P2+P1/2)]
Demand is elastic over 14 to 16
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