document.write( "Question 1077324: if f(x) varies directly with x, and f(x)=12 when x=-16 find the value of f(x) when x=20 \n" ); document.write( "

Algebra.Com's Answer #691953 by josgarithmetic(39623) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"f%28x%29=k%2Ax\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"k=f%28x%29%2Fx\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"k=f%28-16%29%2F-16\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"k=12%2F%28-16%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"k=-3%2F4\"$ \r
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\n" ); document.write( "\n" ); document.write( "MODEL: $\"f%28x%29=-%283%2F4%29x\"$ \n" ); document.write( "

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