For the given point, find the coordinates of the image point under a half-turn about the origin.(2, ?3)
A. (2, 3)
B. (?3, 2)
C. (?2, 3)
D. (3, ?2)
Answer: C
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Describe the domain of the function of three or more varables.f(w, x, y, z) = 
A. All points in ?4 that satisfies w2 + x2 + y2 + z2 ? 0. B. All points in ?4. C. All points in ?4 except the origin (0, 0, 0, 0). D. All points in ?4 that satisfy w > 0, x > 0, y > 0, z > 0.
Solve the system.x2 + 4xy + 2y2 = 1x2 - 4xy - 2y2 = 1
A. {(1, 0), (-1, 0), (1, -2), (-1, 2)} B. {(1, 1), (-1, -1), (1, -2), (-1, 2)} C. {(1, 0), (1, 1)} D. {(1, -2), (-1, 2)}
Find the vertices of the hyperbola.
- 
= 1
A. (0, 4), (0, -4) B. (0, 6), (0, -6) C. (-6, 0), (6, 0) D. (-4, 0), (4, 0)
Find the slope-intercept form of the line satisfying the given conditions.
A. y = 5x + 2 B. y = -5x + 2 C. y = 10x - 18 D. y = -10x - 18