SOLUTION: The equation of the line through (3, -1) and parallel to the line through (1,2) and (2,1). Thanks for the big help.. Kindly put the solution..

Question 187743: The equation of the line through (3, -1) and parallel to the line through (1,2) and (2,1).
Thanks for the big help.. Kindly put the solution..

Answer by jojo14344(1513) (Show Source): You can put this solution on YOUR website!

First, we find the Line Eqn thru points (1,2) & (2,1) via Slope-Intercept From;

Since parallel to the line passing thru (3,-1)---->

Then on point (3,-1), via Point Slope-Form:
---->----> Y-Intercept

Therefore the Line Eqn-----> ---> x+y=2 Standard Form
We can get the line eqn to where it is parallel. Thru point (1,2):
---->---->
Thru point (2,1): ----> --->
So it follows--->
We see the lines:
----> RED, ; GREEN, x+y=2, or
Thank you,
jojo

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