SOLUTION: I need help on turning two points, let's say (1,2),(3,4) , into an Ax+By=c form

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Question 23105: I need help on turning two points, let's say (1,2),(3,4) , into an Ax+By=c form
Answer by Paul(988) About Me  (Show Source):
You can put this solution on YOUR website!
It's real simple. First find the slope of the line which is given by m=Y2-Y1%2FX2-X1
Like for your ezample.
y2=4, y1 = 2
x2=3, x1=1
4-2/3-1
2/2
m=1
Now the slope = 1
Now find the y-intercept "b"
Choose any of the two points.
Like (1,2)
y=2, x=1
2=1(1)=b
2=1+b
b=1
then write the equation y=x+1
then bring x over to the other side.
-x+y=1
Now you can't have a negative in standard form so remove the negative by multiplying the equation by -1.
-(-x+y=1)
x-y=-1.