If x varies directly as y, and x = 27 when y=6, find x when y=2

Easiest way to solve these problems would be setting up a proportion.

Let x = ... well... our missing x

Now, we crossmultiply.

6x = 27(2)

6x = 54

x = 54/6

x = 9

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.