Posted by Marina on .
The line m has the equarion y= 2x + 1. The line n is perpendicular to m and passes through the point A(2,1). Write an equation of n

Geometry 
Damon,
slope of perpendicular = 1/m = 1/2
so
y = x/2 + b
put in 2 for x and 1 for y and solve for b