Question

Suppose that y varies inversely with x. Write a function that models the inverse function x=7 when y=3

Answer 1

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Answer:

y = 21/x

Explanation:

The inverse variation relation means ...

y = k/x

For the given values, we can determine the constant k:

3 = k/7

3×7 = k = 21

Then the function is ...

y = 21/x