How do you write the equation of a line in point slope form and slope intercept form given points (-3, 2) and (2, 1)?
First we have to find the slope of the equation. To find the slope we have to do;
The main formula of a line is;
We should use one point to find the real equation. If we use (2,1) point;
a is the slope of the equation, we found that as
So the equation of the line will be;
We can check if our equation is right or not with other given point;
So the equation is correct :)