Please see the attached file for the full problem.
How can I use a scalar projection to show that the distance from a point?
P(x, y) to the line 3*x-4*y+5 = 0 is > abs(a*x+b*y+c)/sqrt(a^2+b^2);© BrainMass Inc. brainmass.com October 10, 2019, 4:35 am ad1c9bdddf
The trick is to draw a vector B along the line between two points. One is completely arbitrary (x0,y0) and the other is the point on the line (x2,y2) which is closest to the point ...
This solution shows how to use a scalar projection to show that the distance from a point.