Find an equation of the line.
A. y = -9x
B. y = x - 9
C. y = -9
D. x = -9
Answer: C
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Solve the problem.An election is held among five candidates (A, B, C, D, and E). There are 37 voters. Using the method of pairwise comparisons, A, B, and C win one pairwise comparison each. D wins three pairwise comparisons, and E wins all the rest. In this election
A. E is a Condorcet candidate. B. There is no Condorcet candidate. C. D is a Condorcet candidate. D. Cannot be determined from the information given. E. none of these
Decide if the set is finite.{the hairs on your head}
A. Infinite B. Finite
Decide whether the ordered pair is a solution of the system of equations.
; (6, -5)
A. Yes B. No
Rotate the axes so that the new equation contains no xy-term. Discuss the new equation.xy +16 = 0
A. ? = 45°
- 
= 1
hyperbola
center at (0, 0)
transverse axis is y'-axis
vertices at (0, ±4
)
B. ? = 45°
+ 
= 1
ellipse
center at (0, 0)
major axis is y'-axis
vertices at (0, ±4
)
C. ? = 36.9°
+ 
= 1
ellipse
center at (0, 0)
major axis is the x'-axis
vertices at (±2, 0)
D. ? = 45°
y'2 = -32x'
parabola
vertex at (0, 0)
focus at (-8, 0)