document.write( "Question 640294: Patricia wishes to have a rectanglar garden in her backyard. She has 80 ft of fencing with which to enclose her garden. Letting x denote the width of the garden, find a function f in the variable x giving the area of the garden. What is its domain? \n" ); document.write( "

Algebra.Com's Answer #403120 by sachi(548) $\"\"$ $\"About$

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width=x
\n" ); document.write( "perimeter=80
\n" ); document.write( "or 2(x+l)=80
\n" ); document.write( "so l=length=40-x
\n" ); document.write( "so the area=x(40-x)
\n" ); document.write( "the area can never be 0
\n" ); document.write( "x(40-x)>0
\n" ); document.write( "this gives the domain as 0\n" ); document.write( "

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