What is the slope of a line that is perpendicular to M(2, -1), N(0, 4)?
1 Answer
Jul 10, 2015
Slope of a line
Explanation:
Slope of the line MN: a = (y2 - y1)/x2 - x1) = (4 + 1)/(0 - 2) = - 5/2
Slope of the line perpendicular to line MN ->
The product of the 2 slopes (a.a') must be (- 1.)
