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OpenStudy (anonymous):
Write a direct variation equation that relates x to y. Then solve. If y = 8 when x = 4, find y when x = 5.
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OpenStudy (unklerhaukus):
\[y(x)\propto x\]\[y(x)=kx\]\[y(4)=4k=8\]\[k=?\]\[y(5)=5\times?\]
OpenStudy (anonymous):
y∝ x so y1/x1=y2/x2 8/4=y2/5 y2=10
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