Determine the continuity of the function at the given points.f(x) = 
at x = -1 and x = 0
A. The function f is continuous at neither 
nor 
B. The function f is continuous at both 
and 
C. The function f is continuous at 
but not at 
D. The function f is continuous at 
but not at 
Answer: C
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ds, C is the curve r(t) = (-1 - t)i - j + (-1 - t) k, 0 ? t ? 1
A. 
B. - 
C. 3
D. 
Graph the parabola described.Focus at (2, 0); Directrix the line x = -2
A. 
B. 
C. 
D. 
Solve the system by the elimination method. x - 3y = 16-4x - 4y = 16
A. {(0, -4)} B. {(-1, -4)} C. {(1, -5)} D. ?
Solve the problem.A state park charges
per day or fraction of a day to rent a tent site, plus a fixed 
park maintenance fee. Let T(x) represent the cost to stay in a tent site for x days. Find 
A. $99.00 B. $104.00 C. $106.75 D. $115.00