Graph the parabola.f(x) = -4x2 - 3x - 9
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem. Round your answer, if appropriate.As the zoom lens in a camera moves in and out, the size of the rectangular image changes. Assume that the current image is 
Find the rate at which the area of the image is changing (dA/df) if the length of the image is changing at 0.7 cm/s and the width of the image is changing at 0.4 cm/s.
A. 14.0 cm2/sec B. 14.6 cm2/sec C. 7.3 cm2/sec D. 7.0 cm2/sec
Find an exponential model for the following data set. Round your answer to two decimal places. t 0 2 4 6 y 3.07 3.71 4.49 5.43?
A. ?
B. ?
C. ?
D. 
Solve.Express the perimeter of the rectangle as a fully simplified rational expression.
A. 
in.
B. 9x in.
C. 18 in.
D. 9 in.
Solve the problem.Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with a embroidery of a Great Pyrenees dog on the front. There are fixed costs of $560 to set up for production, and variable costs of $29 per jacket. Write an equation that can be used to determine the total cost, C, encountered by Marty's Company in producing x jackets, and use the equation to find the total cost of producing 148 jackets.
A. $4864 B. $4844 C. $4852 D. $4832