First slide
Equation of line in Straight lines
Question

A straight line L through the point  (3,2) is inclined at an angle 60°  to the line 3x+y=1. If   L If L also intersects the x-axis, then the equation of L is

Moderate
Solution

Let the slope of L be m

then,  m+313m=tan60=3

 m+3=3(13m)

or  m+3=3(13m)

 m=0 or n=3

 But n0 as L intersects x- axis 

Hence equation of L is 

y+2=3(x3)

or  y3x+2+33=0  

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App