SOLUTION: What is the y-intercept form of the equation of the line that passes through the points (2,3) and (-1,4)?

Question 46766: What is the y-intercept form of the equation of the line that passes through the points (2,3) and (-1,4)?
Answer by adamchapman(301) (Show Source): You can put this solution on YOUR website!
I have provided an example here. Just plug in your own values and follow my method. I promise it will work
The eqautaion is the equation of a straight line. is the gradient of that line, and is the y-axis intercept. The y-axis intercept is the value of y when x=0.
Try to remember this equation:
where (x1,y1) and (x2,y2) are points on the line. It is an EXTREMELY important equation.
Lets do an example:
(x1,y1)=(1,2)
(x2,y2)=(3,4)
substitute these values into :
and then rearrange to give y in terms of x:

so comparing with "y=mx+b", m=1 and b=1.
I hope this helps,
Adam.
P.S. please check out my website, it may be helpful to you:
http://www.geocities.com/quibowibbler
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