SOLUTION: Find an equation of the line containing the given pair of points. (-2,-1)(-9,-4) The equation of the line in slope-intercept form is y= ? Please help me solve this problem.

Question 994012: Find an equation of the line containing the given pair of points. (-2,-1)(-9,-4)
The equation of the line in slope-intercept form is y= ?
Please help me solve this problem.
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
If you have two points, and ,
you can find the slope, , of the line connecting them as
.

If you have the slope, , of a line and a point, , on that line
(point can be the same as or ),
you can write the equation of that line in form as
.

If you have the equation of that line in form,
you can use algebra to transform that equation into an equivalent equation
for that line in form by solving for .

IN THIS CASE:
and , so
, and .
An equation for the line in form,
using point , is
<--> .
Solving for ,
<--><--><--> ,
gives you the one and only equation in form for that line.
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