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

Answer 1

Isaiah Anthony

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#.

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Answer 2

Savannah Anderson

To find the constant of variation when Y varies directly as X, you can use the formula: constant of variation = Y / X. So, given Y = -6/7 and X = -18/35, the constant of variation is (-6/7) / (-18/35) = 5/7.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.