Question 454379: Find an eaution of the line containing the given pair of points.
( - 7, - 9) and ( - 4, - 8) Found 2 solutions by mananth, ikleyn:Answer by mananth(16949) (Show Source):
You can put this solution on YOUR website! .
Find an eqaution of the line containing the given pair of points.
(-7,-9) and (-4,-8)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The solution in the post by @mananth is incorrect both technically and methodologically.
I came to bring a correct solution.
First find the slope of the line
m = = = = .
Notice that is not -0.33, as @mananth mistakenly states and uses.
Plug the value of the slope and the values of the coordinates (-7,-9) of the given point
in the point-slope equation of the line
y = mx + b,
-9 = + b,
b = -9 + = = = -6.
So, an equation is
y = - 6.
It is the slope-intercept form equation.
Notice that it is absolutely different from that in the post by @mananth.
