Is y=-2x direct or inverse variation?

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Is y=-2x direct or inverse variation?

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Answer 1 · 2017-06-25T06:16:49

$direct variation$ $"direct variation"$

Explanation:

$∙ direct variation \to y \propto x \to y = k x$ $• "direct variation" toypropxtoy=kx$

$∙ inverse variation \to y \propto \frac{1}{x} \to y = \frac{k}{x}$ $• "inverse variation "to yprop1/xtoy=k/x$

$\Rightarrow y = - 2 x is direct variation$ $rArry=-2x" is direct variation"$

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Is y=-2x direct or inverse variation?

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