A feasible region and its vertices are shown. Find the specified maximum or minimum value of the given objective function.
Minimum of K = 7x + 3y
A. 0
B. 36
C. 24
D. 16
Answer: D
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Solve the problem.A publisher spends 70,000 on a book for development, editing, and advertising. It costs the publisher 
per copy at the printer. Find the linear cost function to publish a book. If the publisher charges 
per copy, how many books must be sold to break even? (Round to the nearest unit.)
A. C(x) = 24.05x + 70,000 break-even = 5647 B. C(x) = 70,000x + 1.94 break-even = 1500 C. C(x) = 1.94x + 70,000 break-even = 2693 D. C(x) = 1.94x + 70,000 break-even = 3166
Solve the system of equations by the elimination method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(2, 3), (3, 2), (-2, -3), (-3, -2)} B. {(2, 3), (-2, 3), (2, -3), (-2, -3)} C. {(-2, -3), (-3, -2)} D. {(2, -3), (2, 3)}
Solve the equation.x2 - x = 6
A. -2, 3 B. 1, 6 C. 2, 3 D. -2, -3
Solve the problem.Rachel's bus leaves at 7:15 PM and accelerates at the rate of 4 meters per second per second. Rachel, who can run 8 meters per second, arrives at the bus station 2 seconds after the bus has left. Find parametric equations that describe the motions of the bus and Rachel as a function of time, and simulate the motion of the bus and Rachel by simultaneously graphing these equations.
A. Bus: x1 = 4t2, y1 = 1;
Rachel: x2 = 
(t - 2), y2 = 3
B. Bus: x1 = 4t2, y1 = 1;
Rachel: x2 = 8(t - 2), y2 = 3
C. Bus: x1 = 2t2, y1 = 1;
Rachel: x2 = 8(t - 2), y2 = 3
D. Bus: x1 = 2t2, y1 = 1;
Rachel: x2 = 8(t + 2), y2 = 3