Question

the equation the line passing through the point (1,2) and perpendicular to the line x+y+1=0 is.​

Answer 1

Answer:

So, slope of line perpendicular to above line is 1. Line passes through the point (1,2). Therefore, equation of the required linens: y-2 = 1(x- 1) ⇒ y-x-1=0.