Use the graph to determine whether y varies directly as some power of x or inversely as some power of x. Explain.1. 2. Determine whether the variation model represented by the ordered pairs (x, y) is of the form y = kx or y = k / x, and find k. Then write a model that relates y and x.
Use the graph to determine whether y varies directly as some power of x or inversely as some power of x. Explain.
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Determine whether the variation model represented by the ordered pairs (x, y) is of the form y = kx or y = k / x, and find k. Then write a model that relates y and x.
3. (5, 1), (10, 1/2), (15, 1/3), (20, 1/4), (25, 1/5)
4. (5, 2), (10, 4), (15,6), (20,8), (25,10)
5. (5, ˆ’3.5), (10, ˆ’7), (15, ˆ’10.5), (20, ˆ’14), (25, ˆ’17.5)
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Answer
1. The graph appears to represent y = 4 / x, so y varies inversely as x. 2. The graph appears…View the full answer
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