Identify the vertex of the parabola.y = x2 - 14x + 50
A. (7, 1)
B. (1, 7)
C. (1, 0)
D. (0, 7)
Answer: A
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Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = xyi + xj; C is the triangle with vertices at (0, 0), (6, 0), and (0, 9)
A. - 27 B. 108 C. 0 D. 81
Discuss the equation and graph it.r = 
A. directrix parallel to polar
axis 2 below pole
focus (0, 0), vertex 
B. directrix perpendicular to polar
axis 2 left of pole
focus (0, 0), vertex 
C. directrix perpendicular to polar
axis 2 right of pole
focus (0, 0), vertex 
D. directrix parallel to polar
axis 2 above pole
focus (0, 0), vertex 
Rationalize the denominator.
A. 
B. -1
C. 
D. 
Find a polar equation for the conic. A focus is at the pole.e = 3; directrix is perpendicular to the polar axis 2 to the right of the pole
A. r = 
B. r = 
C. r = 
D. r = 