Given a family of lines a \[a(2x+y+4)+b(x-2y-3)=0\] the number of lines belonging to the family at a distance \[\sqrt{10}\] from \[P(2,-3)\] is

Given a family of lines a \[a(2x+y+4)+b(x-2y-3)=0\] the number of line

1.	Given a family of lines a \[a(2x+y+4)+b(x-2y-3)=0\] the number of lines belonging to the family at a distance \[\sqrt{10}\] from \[P(2,-3)\] is
A.	0
B.	1
C.	2
D.	4
Answer» C. 2

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Given a family of lines a \[a(2x+y+4)+b(x-2y-3)=0\] the number of lines belonging to the family at a distance \[\sqrt{10}\] from \[P(2,-3)\] is

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