Mathematics, 27.06.2019 09:30, heavyhearttim
Suppose y varies directly as x, and y = 8 when x = -2. which of the following is the correct equation to set up to solve for the constant of variation? a) 8 = k(-2) b) -2 = k(8) c) -2/8 = k/1 d) k = (-2) - 8
Answers: 1
![\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] ~\dotfill\\\\ \begin{cases} y=8\\ x=-2 \end{cases}\implies 8=k(-2)](/tpl/images/0022/8299/aa9cb.png)
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Suppose y varies directly as x, and y = 8 when x = -2. which of the following is the correct equatio...
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