Question: An open box with a square base is required to have a volume of 10 cubic feet. (a) Express the amount A of material used

An open box with a square base is required to have a volume of 10 cubic feet.

(a) Express the amount A of material used to make such a box as a function of the length x of a side of the square base.

(b) How much material is required for a base 1 foot by 1 foot?

(c) How much material is required for a base 2 feet by 2 feet?

(d) Use a graphing utility to graph A = A(x). For what value of x is A smallest?

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