Give the coordinates of the points shown on the graph. 
A. E = (2, -3), F = (-7, -2)
B. E = (-2, -7) , F = (-3, 2)
C. E = (-3, 2), F = (-2, -7)
D. E = (-3, -7), F = (2, -7)
Answer: C
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Describe the level surfaces for the given function.f(x, y, z) = 
A. Ellipsoids B. Hyperboloids of two sheets C. Hyperboloids of one sheet D. Paraboloids
Give the equation of the oblique asymptote, if any, of the function.h(x) = 
A. y = 
B. y = x + 
C. y = 
x
D. no oblique asymptote
Evaluate the piecewise-defined function at the indicated value.f(x) = {
; f(0)
A. -1 B. 2 C. 6 D. -5
Solve the problem.The force acting on a pendulum to bring it to its perpendicular resting point is called the restoring force. The restoring force F, in Newtons, acting on a string pendulum is given by the formula F = mg sin?where m is the mass in kilograms of the pendulum's bob, g ? 9.8 meters per second per second is the acceleration due to gravity, and ? is angle at which the pendulum is displaced from the perpendicular. What is the value of the restoring force when m = 0.8 kilogram and ? = 30°? If necessary, round the answer to the nearest tenth of a Newton.
A. 3.8 N B. 3.9 N C. 6.8 N D. 7.7 N