Mathematics, 26.06.2019 21:30 Irdk1
Suppose that y varies inversely with x. use the information to kind k, and then choose the equation of variation. x=2 when y=2 a k=4 ,y=4/x b k=1 , y=1/x c k=4 , y=4x d k=1 , y=1x
Answers: 1
![\bf \qquad \qquad \textit{inverse proportional variation} \\\\ \textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \textit{we also know that } \begin{cases} x=2\\ y=2 \end{cases}\implies 2=\cfrac{k}{2}\implies 4=k~\hfill \boxed{y=\cfrac{4}{x}}](/tpl/images/0020/9443/86f08.png)
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Suppose that y varies inversely with x. use the information to kind k, and then choose the equation...
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