Determine the direction in which the parabola opens, and the vertex.y = x2 + 12x + 35
A. Opens upward; (6, -1)
B. Opens upward; (-6, -1)
C. Opens to the right; (-1, 6)
D. Opens to the right; (-1, -6)
Answer: B
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Write one or more inequalities that describe the set of points.The slab bounded by the planes x = 2 and x = 8 (planes included)
A. 2 ? x ? 8 B. -? < y < ? and -? < z < ? C. x = 2 and x = 8 D. x ? 2 and x ? 8
Find the exact value of the expression if ? = 30°. Do not use a calculator.g(?) = cos ?Find g(2?).
A. 1
B. 
C. 
D. 
Solve the problem.The function E(x) = 0.0036x3 + 0.0055x2 + 0.19x + 1.76 gives the approximate total earnings of a company, in millions of dollars, where
corresponds to 2006, 
corresponds to 2007, and so on. This model is valid for the years from 2006 to 2010. Determine the earnings for 2007. Round to two decimal places if necessary.
A. $1.76 million B. $2.19 million C. $1.96 million D. $1.95 million
Use the graph to determine the x- and y-intercepts.
A. y-intercepts: -2, 2 B. x-intercepts: -3, 3; y-intercepts: -2, 2 C. x-intercepts: -3, 3 D. x-intercepts: -2, 2; y-intercepts: -3, 3