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If 2a+b+2c=0, then the family of lines ax+by+c=0 is concurrent at

If 2a+b+2c=0, then the family of lines ax+by+c=0 is concurrent at

Grade:12

1 Answers

Vikas TU
14149 Points
6 years ago
Make  ax+by+c=0 similar to 2a +  b + 2c = 0
therfore multiply  ax+by+c=0 by 2 
.i.e.
2ax + 2by + 2c = 0
Now compare it with the coeff. of 
2a+b+2c=0
we get,
x = 1
y = ½
thus at this point it is concurrent.
 
 
 

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