Find the equation of a line passing through the origin and making an angle of 120 0 with the positive direction of the x - axis.

Question

Philoid · Accepted Answer

As angle is given so we have to find slope first give by m = tanθ

m = tan120°

)

(tan (180° - θ) is in II quadrant, tanx is negative)

Now equation of line passing through origin is given as y = mx