Exam 3: Additional Applications of the Derivative

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Find all the critical numbers of the function f(x)=x312x5f ( x ) = x ^ { 3 } - 12 x - 5 .

(Multiple Choice)
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Find two non-negative numbers x and y whose sum is 4 and are such that the xy2 is as large as possible.

(Short Answer)
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Find the absolute maximum and minimum of the function f(x)=2x37x2+8x+2f ( x ) = 2 x ^ { 3 } - 7 x ^ { 2 } + 8 x + 2 on the interval 0 \le x \le 3.

(Short Answer)
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Find two non-negative numbers x and y whose sum is 10 and are such that xy2 is as large as possible.

(Multiple Choice)
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The derivative of function shown below is negative on the interval shown. The derivative of function shown below is negative on the interval shown.

(True/False)
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Name the vertical and horizontal asymptotes of the given graph. Name the vertical and horizontal asymptotes of the given graph.

(Short Answer)
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Determine where the second derivative in the function graphed below is positive. Determine where the second derivative in the function graphed below is positive.

(Short Answer)
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The function f(x)=x65x3+2f ( x ) = x ^ { 6 } - 5 x ^ { 3 } + 2 has a relative maximum at x = 1.

(True/False)
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Find the absolute maximum of the function f(x)=x5x4f ( x ) = x ^ { 5 } - x ^ { 4 } on the interval -1 \le x \le 1.

(Multiple Choice)
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Find the intervals of increase and decrease for f(x)=4x3+6x272x3f ( x ) = 4 x ^ { 3 } + 6 x ^ { 2 } - 72 x - 3 .

(Short Answer)
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Determine where the graph of f(x)=x36x2+8x+4f ( x ) = x ^ { 3 } - 6 x ^ { 2 } + 8 x + 4 is concave down.

(Multiple Choice)
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Determine where the graph of f(x)=x4+6x324x2+26f ( x ) = x ^ { 4 } + 6 x ^ { 3 } - 24 x ^ { 2 } + 26 is concave up and concave down.

(Short Answer)
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Find the absolute minimum of the function f(x)=x33x2f ( x ) = x ^ { 3 } - 3 x ^ { 2 } on the interval 1 \le x \le 5.

(Multiple Choice)
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Determine the critical numbers of the given function and classify each critical point as a relative maximum, a relative minimum, or neither. Round numbers to two decimal places, if necessary. f(x)=5x212x+27f ( x ) = \frac { 5 } { x ^ { 2 } - 12 x + 27 }

(Short Answer)
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Find the absolute maximum and absolute minimum of f(x)=x42x2+20f ( x ) = x ^ { 4 } - 2 x ^ { 2 } + 20 on the interval -9 \le x \le 4.

(Short Answer)
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=The absolute maximum of the function f(x)=2xx+1f ( x ) = \frac { 2 x } { x + 1 } on the interval 0 \le x \le 1 is 1.

(True/False)
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Find all critical numbers of the function f(x)=x33x4f ( x ) = x ^ { 3 } - 3 x ^ { 4 } .

(Short Answer)
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Find all vertical and horizontal asymptotes of the graph of the given function. f(x)=x22xx28x+15f ( x ) = \frac { x ^ { 2 } - 2 x } { x ^ { 2 } - 8 x + 15 }

(Multiple Choice)
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An open box is to be made from a square piece of cardboard, 24 inches by 24 inches, by removing a small square from each corner and folding up the flaps to form the sides. What are the dimensions of the box of greatest volume that can be constructed in this way?

(Multiple Choice)
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The graph of f(x)=3x42x312x2+18x5f ( x ) = 3 x ^ { 4 } - 2 x ^ { 3 } - 12 x ^ { 2 } + 18 x - 5 is concave up for x<23x < \frac { 2 } { 3 } .

(True/False)
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