Generate The Equation of Lines that Through Two Points

Problem
The equation of lines that through (4,1) and (6,-2) is...

Jawaban
from the first point:
x₁=4, y₁=1

from the second point:
x₂=6, y₂=-2

the calculation:

y2-y	=	y2-y1
x2-x		x2-x1
-2-y	=	-2-1
6-x		6-4
-2-y	=	-3
6-x		2
2(-2-y)	=	-3(6-x)
-4-2y	=	-18+3x
-3x-2y+14	=	0
or
3x+2y-14	=	0