\({\left( {{\rm{x}} - 1} \right)^2} + {\left( {{\rm{y}} - 3} \right)^2 – McqOptions

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1.	\({\left( {{\rm{x}} - 1} \right)^2} + {\left( {{\rm{y}} - 3} \right)^2} = {{\rm{r}}^2}\) and \({{\rm{x}}^2} + {{\rm{y}}^2} - 8{\rm{x}} + 2{\rm{y}} + 8 = 0\)What is the distance between the centres of the two circles?
A.	5 units
B.	6 units
C.	8 units
D.	10 units
Answer» B. 6 units

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