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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 between the point A=(-7,8) and the line that goes through the point P=(-1,-3) and which position vector is v=(-2,0)

D =