Manipal MET2021MathematicsStraight Lines
The equation to the line through the point of intersection of x-y+1=0,3 x+2 y+4=0 and perpendicular to x-4 y=0 is
Options
- A4 x+y+5=0
- B4 x+y+3=0
- C4 x+y-5=0
- D4 x+y-3=0
Correct answer
A. 4 x+y+5=0
Step-by-step solution
Point of intersection of x-y+1=0 and 3 x+2 y+4=0 is Slope of required line is -4 . Required line is (y+ 1 5 )=-4 (x+ 6 5 ) array lr & 5 y+1=-20 x-24 & 5 y+20 x=-25 & y+4 x+5=0 array