Use l'Hopital's Rule to evaluate the limit.
A. 1
B. - 
C. 
D. 
Answer: D
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Find the focus and directrix of the parabola.y2 = -4x
A. (1, 0); x = -1 B. (0, -1); y = 1 C. (-1, 0); y = 1 D. (-1, 0); x = 1
Let B denote the price of a bag of groceries at time t. It is found that 
changes sign from negative to positive at 
. What can be concluded about the graph of B at the point
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??
A. The graph of B reaches a maximum at .
B. The graph of B reaches a minimum at .
C. The graph of B is increasing at .
D. The graph of B is decreasing at .
Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Solve the nonlinear system of equations.x2 + y2 = 68x2 - y2 = -60
A. {(-2, -8), (-8, -2)} B. {(2, -8), (2, 8)} C. {(2, 8), (-2, 8), (2, -8), (-2, -8)} D. {(2, 8), (8, 2), (-2, -8), (-8, -2)}