Question

The line 2y+x= 1 is perpendicular to a line L. Line L passes through point (2,−1), Determine the equation of L in the form y = mx + c, where m and c are constants.

Answer 1

m₁= −½
m₂ = 2  (2,−1)
y=m(x −x value) + y value
y=2(x − 2)−1
y=2x−5