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Decide Whether or Not the Equation Has a Circle as Its

Question 439

Multiple Choice

Decide whether or not the equation has a circle as its graph. If it does not, describe the graph.
- 5x2+5y2+40x−30y+120=05 x ^ { 2 } + 5 y ^ { 2 } + 40 x - 30 y + 120 = 0


A) no; the graph is the point (−4,3) ( - 4,3 )
B) no; the graph is the point (4,−3) ( 4 , - 3 )
C) no; the graph is nonexistent
D) yes

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