246886420321 246886420321
  • 23-05-2019
  • Mathematics
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What is the constant of variation, k, of the direct variation, y = kx, through (–3, 2)?

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jdoe0001 jdoe0001
  • 23-05-2019

[tex]\bf \qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ (-3,2)~~ \begin{cases} x=-3\\ y=2 \end{cases}\implies 2=k(-3)\implies -\cfrac{2}{3}=k[/tex]

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