Questions
If the lines , and are concurrent then m=
a
6
b
-37
c
37
d
-27
detailed solution
Correct option is A
Three lines are said to be concurrent, if those three lines are passing through the same point. To get the point of intersection of two lines y=2x+3, y=3x+4Equate both equations 2x+3=3x+4x=−1Substitute x=-1 , in the equation y=3x+4 y=3−1+4=1The point of intersection is −1,1Since three lines are concurrent, the point −1,1 lies on the line y=mx+7Hence, 1=−m+7m=6Therefore,m=6Talk to our academic expert!
Similar Questions
If the lines ax+by+c = 0, bx+cy+a = 0 and cx+ay+b=0 are concurrent then the point of concurrency is
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