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Is $8 x + 9 y = 10$ $8x + 9y = 10$ a direct variation and if so what is the constant?

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Jun 7, 2015

It is a direct variation.

9y = - 8x + 10 --> $y = \frac{- 8 x}{9} + \frac{9}{10}$ $y = (- 8x)/9 + 9/10$ .

The constant is $(- \frac{8}{9})$ $(-8/9)$

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