User: desconectar
Maths Exercices
Distance from a point to a line

The formula that gives the distance between a point A=(m,n) and a line r:ax+by+c=0 is:

Find the distance from point A(4,1) to the line r:2x-y+4=0

Find the distance from the point A=(7,-4) to the line that goes through the points P=(9,-8) and Q=(1,-2)

D =