Question

Assume that y varies inversely as x. If x = 12 when y = 9, what is x when y = -3?

Answer 1

do you have an answer?

Answer 2

y varies in inversely means y is the denominator like:

\[\large x = k \times \frac{1}{y} \implies x = \frac{k}{y}\]

Now x = 12 and y = 9

Plug in the values and find k first..

Answer 3

you can also do \[y = \frac kx\]
hehe

Answer 4

Ha ha ha..

Answer 5

After finding k, use the same formula to find x and put y = -3 and k = as you got..