(y-5)/(2-5)=(x-2)/(5-2)
3x-6=-3y+15
3x+3y-6-15=0
x+y-7=0
(x-2)/(5-2)=(y-5)/(2-5)
(x-2)/3=(y-5)/(-3)
x-2=-y+5
(y-5)/(2-5)=(x-2)/(5-2)
3x-6=-3y+15
3x+3y-6-15=0
x+y-7=0
(x-2)/(5-2)=(y-5)/(2-5)
(x-2)/3=(y-5)/(-3)
x-2=-y+5
x+y-7=0