SOLUTION: If f(x) varies directly with x, and f(x) = 45 when x = 9, find the value of f(x) when x = 3.

Algebra ->  Functions -> SOLUTION: If f(x) varies directly with x, and f(x) = 45 when x = 9, find the value of f(x) when x = 3.       Log On


   

Question 933228: If f(x) varies directly with x, and f(x) = 45 when x = 9, find the value of f(x) when x = 3.
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
45/9=f(x)/3
f(x)=(45/9)*3=15