Find the equation in standard form of the parabola whose graph is shown.
A. x = - 
(y + 1)2 + 9
B. y = 
(x + 1)2 + 9
C. y = -2(x - 1)2 - 9
D. y = - 
(x + 1)2 + 9
Answer: D
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A delivery truck must deliver furniture to 4 different locations (A, B, C, and D). The trip must start and end at A. The graph below shows the distances (in miles) between location. We want to minimize the total distance traveled.
An optimal tour is given by:
A. A, B, D, C, A. B. A, D, C, B, A. C. A, B, C, D, A. D. A, C, B, D, A. E. none of these
The eccentricity is given of a conic section with one focus at the origin, along with the directrix corresponding to that focus. Find a polar equation for the conic section. e = 5, y = -8
A. r = 
B. r = 
C. r = 
D. r = 
Simplify.
A. 8x(x + 8) B. x + 8 C. -(x + 8) D. -(x - 8)
Solve the problem.In a triangle, one angle is 2 times as large as another. The measure of the third angle is 100° greater than that of the smallest angle. Find the measure of each angle.
A. 25°, 50°, 105° B. 20°, 40°, 100° C. 20°, 40°, 120° D. 30°, 60°, 90°