Factor.x3 - x2 + 12x - 12
A. (x2 - 1)(x + 12)
B. (x2 - 12)(x + 1)
C. (x2 + 1)(x - 12)
D. (x2 + 12)(x - 1)
Answer: D
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Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
Determine where the function is increasing and where it is decreasing.f(x) = -x2 - 4x + 5
A. increasing on (-2, ?) decreasing on (-?, -2) B. increasing on (-?, 9) decreasing on (9, ?) C. increasing on (-?, -2) decreasing on (-2, ?) D. increasing on (9, ?) decreasing on (-?, 9)
Complete each statement with a word or phrase that makes it true.
In the diagram
Solve the problem.A steel can in the shape of a right circular cylinder must be designed to hold 550 cubic centimeters of juice (see figure). It can be shown that the total surface area of the can (including the ends) is given by S(r) = 2?r2 + 
, where r is the radius of the can in centimeters. Using the TABLE feature of a graphing utility, find the radius that minimizes the surface area (and thus the cost) of the can. Round to the nearest tenth of a centimeter. 
A. 0 cm B. 3.6 cm C. 4.4 cm D. 5.6 cm