Question

If y varies inversely as x, find the constant of variation if y = 14 when x = 8.
A. 112
B. 2
C. 7/4
D. 7

Answer 1

y=k/x

Answer 2

Plug in the given y and x values and find k which is the constant of variation.

Answer 3

I don't get it

Answer 4

Did you see the equation I wrote?

Answer 5

yes I did so it would be 14=k/8

Answer 6

\[y=\frac{k}{x}\]

Answer 7

Now solve that for k by multiplying both sides by 8

Answer 8

\[14(8)=\frac{k}{8}(8)\]

Answer 9

112=k/64?