Solved

Decide Whether or Not the Equation Has a Circle as Its

Question 416

Multiple Choice

Decide whether or not the equation has a circle as its graph. If it does not, describe the graph.
- $x ^ { 2 } + y ^ { 2 } - 2 x + 6 y - 15 = 0$

A) no; the graph is the point $( 1 , - 3 )$
B) no; the graph is nonexistent
C) no; the graph is the point $( - 1,3 )$
D) yes

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