Q. The equation of the straight line joining the origin to the point of intersection of $y - x + 7 = 0$ and $y + 2x - 2 = 0,\$is
A) $3x + 4y = 0$
B) $3x - 4y = 0$
C) $4x - 3y = 0$
D) $4x + 3y = 0$
Explanation
(d)
The intersection point of $y - x + 7 = 0\$and $y + 2x - 2 = 0$ is $(3,\ - 4)$
$\therefore$ Equation of dtrianght line joining from origin t6o the point $(3,\ - 4)$ is
$y - 0 = \frac{- 4}{3}(x - 0)$
$\Rightarrow 3y = - 4x\ \Rightarrow 4x + 3y = 0$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.