document.write( "Question 92731This question is from textbook Algebra and Trigonometry
\n" ); document.write( ": A rectangle is placed under the parabolic arch given by f(x)=27-3x squared by using a point (x,y) on the parabola, as shown. Write a formula for the function A(x) that gives the area of the rectangle as a function of the x-coordinate of the point chosen. \n" ); document.write( "
Algebra.Com's Answer #67527 by scott8148(6628)\"\" \"About 
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area equals length*width ... in this case, x-dimension*y-dimension ... the y-dimension is f(x)\r
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\n" ); document.write( "\n" ); document.write( "since the parabola is centered on the y-axis, the x-dimension is 2x ... so a=(f(x))*2x ... (27-3x^2)2x ... 54x-6x^3
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