document.write( "Question 83177: All day I've tried to get this word problem completed and I have no clue. Can you help me?\r
\n" ); document.write( "\n" ); document.write( "An open-top box is to be constructed from a 6 foot by 8 foot rectangular cardboard by cutting out equal squares at each corner and folding up the flaps. Let x denote the length of each side of the square to be cut out.\r
\n" ); document.write( "\n" ); document.write( "Questions:\r
\n" ); document.write( "\n" ); document.write( "Find the function V that represents the volume of the box in terms of x.
\n" ); document.write( "Graph this function and show the graph over the valid range of the variable x.
\n" ); document.write( "Using the graph, what is the value of x that will produce the maximum volume?
\n" ); document.write( "

Algebra.Com's Answer #59694 by Mona27(45)\"\" \"About 
You can put this solution on YOUR website!
If you can imagine the cardboard 6 feet by 8 feet, and you're cutting squares of side x from each corner.
\n" ); document.write( "The length of the box would be 8-2x, and the width would be 6-2x, and the height is x.
\n" ); document.write( "So the volume is \"V=x%288-2x%29%286-2x%29\"
\n" ); document.write( "The relevant range of values of x are from 0 to 3, since you can't have the cut-out squares having a larger side than half the width of the original rectangular cardboard..
\n" ); document.write( "The graph looks like this:
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-1%2C+3%2C+-2%2C+30%2Cx%2A%288-2x%29%2A%286-2x%29%29+\"
\n" ); document.write( "And the value of x which will give the maximum volume is approximately 1.13
\n" ); document.write( "
\n" );