Use the horizontal line test to determine whether the function is one-to-one.
A. Yes
B. No
Answer: B
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Solve the problem.A spring with a spring constant k of 8 pounds per foot is loaded with a 16-pound weight and allowed to reach equilibrium. It is then displaced 4 feet downward and released. If the weight experiences a retarding force in pounds equal to 0.15 times the velocity, find the equation of motion.
A. y ? e-0.15t(4 cos 4t + 0.15 sin 4t) B. y ? e-0.075t(4 cos 4t + 1.2 sin 4t) C. y ? 4 sin 4t + 1.2 cos 4t D. y ? e-0.15t(4 sin 4t + 0.15 cos 4t)
Determine whether the given value is a solution to the equation.6x - 2 = 10, x = 2
A. Yes B. No
Solve the problem.The voltage E in an electrical circuit is given by E = 1.7 cos 110?t, where t is time measured in seconds. Find the frequency of the function (that is, find the number of cycles or periods completed in one second).
A. 
B. 55
C. 
D. 110
Polar coordinates of a point are given. Find the rectangular coordinates of the point.(-2, 360°)
A. (2, 0) B. (0, 2) C. (-2, 0) D. (0, -2)