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Question #58049

1 Answer

Sep 20, 2017

This is a direct variation. Assuming $y$ $y$ is the dependent variable, then the constant of variation is $\frac{1}{8}$ $1/8$

Explanation:

[Obviously, since this is 8 months after the question was posted, the answer was not received by 4:35 on the day it was posted].

If $- 7 x = - 56 y$ $-7x=-56y$
then writing this as an expression for the dependent variable $y$ $y$
$XXX y = \frac{- 7}{- 56} x = \frac{1}{8} x$ $color(white)("XXX")y=(-7)/(-56)x = 1/8x$

An equation of the form $y = c x$ $y=cx$ for some constant $c$ $c$
is a direct variation with constant of variation $c$ $c$

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