document.write( "Question 994619: Write a function rule for the area of a rectangle whose length is 6 ft more than its width. What is the area of the rectangle when it's width is 12 ft \n" ); document.write( "
Algebra.Com's Answer #613722 by fractalier(6550)\"\" \"About 
You can put this solution on YOUR website!
A = LW
\n" ); document.write( "Here L = W + 6 so that
\n" ); document.write( "A = (W + 6)W = W^2 + 6W
\n" ); document.write( "If W = 12, then
\n" ); document.write( "A = 12^2 + 6(12) = 144 + 72 = 216 ft^2
\n" ); document.write( "
\n" );