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3 years ago

Two quantites, x and y, are directly proportional. if x is halved, what happened to y?

Mathematics

2 answers:

Vlad [161]3 years ago

5 0

If x and y are proportional x halved=y halved

Tpy6a [65]3 years ago

5 0

$\bf \qquad \qquad \textit{direct proportional variation}
\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
x=\cfrac{x}{2}~\hspace{7em}y=k\cdot \cfrac{x}{2}\implies y=\cfrac{kx}{2}\implies \stackrel{doubled}{\stackrel{\downarrow }{2y}=kx}$

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