Question

Suppose that x and y vary inversely, and x = 2 when y = 7. Write the function that models the inverse variation.

A.y=5/x


B.y=14/x


C.y=9/x


D.
y = 3.5x

Answer 1

y=14/x

Explanation:

Answer 2

Given is = x and y vary inversely ; this means when x increases y decreases and when y increases x decreases but the product remains unchanged.

It can be written as =
`x=(1)/(y)`

Now, the given values are :

x = 2 and y = 7

So, the correct answer is option B.

`y=(14)/(x)` or x*y=14

Hence, option B is correct.