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Mathematics
Mathematics
Problem
Write the equation of the circle with centre
(
1
2
,
−
3
)
\left(\dfrac12,-3\right)
(
2
1
,
−
3
)
and radius
5
5
5
in general form. a)
x
2
+
y
2
+
x
+
6
y
−
63
4
=
0
x^{2}+y^{2}+x+6y-\dfrac{63}{4}=0
x
2
+
y
2
+
x
+
6
y
−
4
63
=
0
b)
x
2
+
y
2
−
x
+
6
y
−
63
4
=
0
x^{2}+y^{2}-x+6y-\dfrac{63}{4}=0
x
2
+
y
2
−
x
+
6
y
−
4
63
=
0
c)
x
2
+
y
2
−
x
+
6
y
+
63
4
=
0
x^{2}+y^{2}-x+6y+\dfrac{63}{4}=0
x
2
+
y
2
−
x
+
6
y
+
4
63
=
0
d)
x
2
+
y
2
−
2
x
+
6
y
−
15
=
0
x^{2}+y^{2}-2x+6y-15=0
x
2
+
y
2
−
2
x
+
6
y
−
15
=
0
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