Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (anonymous):

If f(x) varies directly with x2, and f(x) = 72 when x = 6, find the value of f(3). (Points : 1) 108 18 36 54

OpenStudy (anonymous):

@ribhu

OpenStudy (ribhu):

fx = kx2 f6 = k. 6.6 = 36 k =72 k = 2 so f3 = 2. 3.3 = 18

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!