Question

Find the equation of the straight line passing through the point (3, 3) which is perpendicular to the line y=-x-4​

Answer 1

Answer: y=x
The slope of the perpendicular line is the opposite reciprocal. So you do -(-1/1) which equals 1. So now we have y=x+b. Plug (3,3) into this and you get 3=3+b. So b=0 and the equation is y=x