Section: Math Section 2
24)
| Price of One Pack | Projected Number of Packs Sold |
| $0.75 | 10,000 |
| $0.80 | 9,000 |
| $0.85 | 8,000 |
| $0.90 | 7,000 |
| $0.95 | 6,000 |
| $1.00 | 5,000 |
The chart above describes how many packs of gum a company expects to sell at a number of possible prices per pack. Which of the following equations best describes the relationship shown in the chart, where n indicates the number of packs sold and p represents the price in dollars of one pack?
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Explanation
Backsolving is a great way to answer this question. Pick a set of p and n from the chart; then, plug them in to each given equation to see whether the pair works.
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