Answer :
m=(y2-y1)/(x2-x1) (Multiplied terms on both sides of equation by (x2-x1).)
m(x2-x1)=y2-y1 (Added y1 to both sides of equation, ultimately isolating y2.)
y2=m(x2-x1)+y1
m(x2-x1)=y2-y1 (Added y1 to both sides of equation, ultimately isolating y2.)
y2=m(x2-x1)+y1
