Question

y varies inversely as twice x. When x = 9, y = 2. Find y when x = 3.

Answer 1

firstly, do you know how to put "y varies inversely as twice x" in equation form?

Answer 2

y = k/x I believe it is.

Answer 3

Twice x bro.

Answer 4

y= k/2x?

Answer 5

Does that work? Do you have the answer?

Answer 6

i got as far is y= k/9 I have no clue what K would stand for and Y is missing.

Answer 7

It's a function.

So we use the first set of points to find k, then substitute the new point into the function to get a value for y.