Urgently solve

CPT 603 views 3 replies

A straight line ‘L’ is ⊥lr to the line 2x + y – 4 = 0


and cuts x-axis at (3,0), find the ⊥lr distance


from the point (2,-3) to the line ‘L’


a)1/root5

b).5

c).root 5

d).2root5

 

Replies (3)

Ans : d) 2 / root 5

 

ABS ( ax+by+c) / Root (a^2+b^2)

 

 

please larify

 

2x+y-4=0

a=2,b=1,c=-4

x=3,y=0

Perpendicular distance = (abs(2*3+1*0-4))/Root(2^2+1^2)

                                            = abs(6+0-4)/root (4+1)

                                             =2/root(5)

 

 

 

 

 

 

 


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