Minimum Area A rectangular poster is to contain 648 square inches of print. The margins at the top and bottom of the poster are to be 2 inches, and the margins on the left and right are to be 1 inch. What should the dimensions of the poster be so that the least amount of poster is used?
Added by Julio T.
Step 1
Let the width of the printed area be $x$ inches and the height be $y$ inches. Then, the area of the printed area is $xy = 648$ square inches. Show more…
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'A rectangular poster is to contain 648 square inches of print: The margins at the top and the bottom of the poster are to be 2 inches, and the margins on the left and the right are to be 1 inch: What should the dimensions of the poster be so that the least amount of poster is used?'
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