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Concept explainers
Solve each problem. See Example 3.
The table lists the average annual cost y (in dollars) of tuition and fees at 2-year colleges for selected years x, where year 1 represents 2008, year 2 represents 2009, and so on.
Year | Cost (in dollars) |
1 | 2530 |
2 | 2790 |
3 | 2940 |
4 | 3070 |
5 | 3220 |
Source: The College Board. |
a. Write five ordered pairs
b. Plot the ordered pairs
c. Use the ordered pairs
d. Use the equation from part (c) to estimate the average annual cost at 2-year colleges in 2013 to the nearest dollar. (Hint: What is the value of x for 2013?)
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Chapter 3 Solutions
Beginning and Intermediate Algebra (6th Edition)
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