View Full Version : eqn of variation (y varies directly as x, y = 2 for x = 10)

05-11-2006, 08:45 PM
im not really sure on what to do here . so anyones help will be fully appreciated . thank you

the problem is : find an equation of variation where "y" varies directly as "x", and y = 2 when x =10 .

thank you for helping me . :D

05-11-2006, 10:51 PM
"y" varies directly as "x"These words should ring in your head. Whenever you see them, don't even keep reading the problem. Stop! Write down "y = k*x". THEN, go back and read the rest of the problem statement.

05-12-2006, 11:03 AM
In that problem all you have to do is use the formula that tkhunny gave you and plug the numbers in like this

2=k(10) and then you put 2/10 then you divide it and you get your answer for k.

Hope this helped you.