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

Step-by-step 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