Y varies directly as X, how do you find the constant of variation given Y= -6/7 when X= -18/35?

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Answer 1 · 2016-07-20T04:38:27

Hence, the const. of variation #k=5/3#.

#Y prop XrArr Y=kX............(1), where, k!=0# is a const. of variation.

To determine #k#, we are given the cond. that,

when #X=-18/35, Y=-6/7#

Let us put these values in #( )#, to see that, #-6/7=k(-18/35)#

#:. k=6/7xx35/18=5/3#

Hence, the const. of variation #k=5/3#.

Enjoy Maths.!