Answer the question.Which one of the equations below matches the graph?
A. y = 4 cos(2x)
B. y = 4 cos
C. y = 4 sin
D. y = 2 cos
Answer: A
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Parametrize the surface S.S is the cap cut from the paraboloid z = 
- 9x2 - 9y2 by the cone z = 
.
What will be an ideal response?
Answer the question or provide the appropriate response.A rock is thrown upward from the top of a 14-foot building with an initial velocity of 83 feet per second. Describe how you could use the graph of y = -16x2 + 83x + 14 to find the maximum height attained by the rock.
A. Find the x-coordinate of the vertex. B. Find the positive x-intercept. C. Find the y-intercept. D. Find the y-coordinate of the vertex.
Answer the question.Which one of the following is the correct method for evaluating the expression 
A. 2 ? 72 - 5 = 142 - 5 = 196 - 5 = 191 B. 2 ? 72 - 5 = (14 - 5)2 = 9 = 81 C. 2 ? 72 - 5 = 2 ? 49 - 5 = 98 - 5 = 93 D. 2 ? 72 - 5 = 2 ? 22 = 2 ? 4 = 8
Solve.Given f(x) = x2 + 13x + 42, find all values for x for which f(x) > 0.
A. (-6, ?) B. (-?, -7) C. (-?, -7) ? (-6, ?) D. (-7, -6)