Graph the ellipse and locate the foci.9x2 + 4y2 = 36
A. foci at (
, 0) and (-
, 0)
B. foci at (0, 
) and (0, -
)
C. foci at (
, 0) and (-
, 0)
D. foci at (2
, 0) and (-2
, 0)
Answer: B
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Calculate the area of the surface S.S is the portion of the cylinder x2 + y2 = 9 that lies between z = 3 and z = 6.
A. 27? B. 18? C. 9? D. 54?
A truck must drop off furniture at 4 different homes (A, B, C, and D) as shown in the graph below, starting and ending at A. The numbers on the edges represent distances (in miles) between locations. The truck driver wants to minimize the total length of the trip.
The repetitive nearest-neighbor tour starting with vertex A is given by:
A. A, C, D, B, A. B. A, B, D, C, A. C. A, C, B, D, A. D. A, D, C, B, A. E. none of these
Find the quotient.68 ÷ 68
A. 1 B. 68 C. 0 D. undefined
Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = x2 - 6x + 8 
A. vertex (3, -1)
intercepts (4, 0), (2, 0), (0, 8)
B. vertex (-3, 1)
intercepts (-4, 0), (- 2, 0), (0, -8)
C. vertex (3, 1)
intercepts (4, 0), (2, 0), (0, -8)
D. vertex (-3, -1)
intercepts (-4, 0), (- 2, 0), (0, 8)