Question 177419
x varies directly as the square of s and inversely as t. How does x change when s is doubled? When both s and t are doubled?
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so {{{xt/s^2=k}}}--->{{{x=s^2k/t}}}
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if s is doubled--->x={{{(2s)^2k/t}}}--->{{{4(s^2k/t)}}} meaning x will quadruple
......................................................in size
:
if s and t are doubled--->{{{x=(2s^2)k/2t}}}--->{{{x=4s^2k/2t}}}--->
{{{2(s^2k/t)}}}meaning x will double in size.
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