Find the vertex of the quadratic equation's graph and determine whether the graph opens up or down.y = -2x2 + 3x - 12
A. 
, down
B. 
, up
C. 
, up
D. 
, down
Answer: D
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Solve the problem.The weight of a body above the surface of the earth is inversely proportional to the square of its distance from the water of the earth. What is the effect on the weight when the distance is multiplied by 4?
A. The weight is multiplied by 4. B. The weight is multiplied by 16. C. The weight is divided by 4. D. The weight is divided by 16.
Give the value of the indicated trigonometric function of a vector with the indicated end point.(0, -2); Find cos ?.
A. 1 B. -2 C. 2 D. 0
Find the inverse function f-1 of the function f.f(x) = 4 sin x - 6
A. f-1(x) = 4 sin-1 x - 6
B. f-1(x) = sin-1
C. f-1(x) = sin-1
D. f-1(x) = cos 
Convert as indicated. Express the answer in decimal form when needed.23 yards per day to feet per day
A. 276 ft/d B. 207 ft/d C. 828 ft/d D. 69 ft/d