Question: Exercise 4. (4 points). PACKAGING COST. A rectangular box is to have a square base and a volume of 20 ft3.The material for the sides

the sides costs 10 cents/ft2, and the material for the top costs

20 cents/ft2. Letting x denote the length of one side of the

Exercise 4. (4 points). PACKAGING COST. A rectangular box is to have a square base and a volume of 20 ft3.The material for the sides costs 10 cents/ft2, and the material for the top costs 20 cents/ft2. Letting x denote the length of one side of the base, find a function in the variable x giving the cost of constructing the box. Draw the graph of the cost function using GeoGebra. Using the graph, approximate the value of x in order that the cost of packaging is minimal.SECTION 2.5 Exercise 8. (4 points). Compute lim f(x) and lim f(x) if a. f(x) = 5x- - 10x +4 and c = 2 x + 3 if x l

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