Mathematics, 10.07.2019 02:00 2021andrewkell
Two quantites, x and y, are directly proportional. if x is halved, what happened to y?
Answers: 2
![\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}\\\\ x=\cfrac{x}{2}~\hspace{7em}y=k\cdot \cfrac{x}{2}\implies y=\cfrac{kx}{2}\implies \stackrel{doubled}{\stackrel{\downarrow }{2y}=kx}](/tpl/images/0071/5900/a349b.png)
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Two quantites, x and y, are directly proportional. if x is halved, what happened to y?...
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