Question

let the lines AB and AC have the equations 3x-4y+1=0 and x+y=2 respectively.Find the equation of the line AP,where p has the coordinates (-2,5).​

Answer 1

The given lines are perpendicular and as AB = AC  Therefore  ABC is art . angled isosceles . Hence the lineBC through  ( 1 , 2)  will make an angles of ±45∘ with the given lines . Its equations is y - 2  = m (x - 1)  where m  = 1 / 7  and -7 as in .Hence the possible equations are 7x + y - 9 = 0 and x  - 7y + 13 =