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Mathematics
Problem
If a circle is concentric with the circle
x
2
+
y
2
−
4
x
−
6
y
+
9
=
0
x^2 + y^2 - 4x - 6y + 9 = 0
x
2
+
y
2
−
4
x
−
6
y
+
9
=
0
and passes through the point (-4, -5), then its equation is a.
x
2
+
y
2
+
4
x
+
6
y
−
87
=
0
x^2 + y^2 + 4x + 6y - 87 = 0
x
2
+
y
2
+
4
x
+
6
y
−
87
=
0
b.
x
2
+
y
2
−
4
x
+
6
y
+
87
=
0
x^2 + y^2 - 4x + 6y + 87 = 0
x
2
+
y
2
−
4
x
+
6
y
+
87
=
0
c.
x
2
+
y
2
−
4
x
−
6
y
−
87
=
0
x^2 + y^2 - 4x - 6y - 87 = 0
x
2
+
y
2
−
4
x
−
6
y
−
87
=
0
d.
x
2
+
y
2
+
4
x
+
6
y
+
87
=
0
x^2 + y^2 + 4x + 6y + 87 = 0
x
2
+
y
2
+
4
x
+
6
y
+
87
=
0
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