Question

Plz, I need help. How can I find an equation of the line passing through the two points.
Write the equation in standard form.
(-6,2) and (6,-9)

Thx!!

Answer 1

start by using point-slope form, and then solve for y=mx+b form
\[y-y_1=m(x-x_1)\]
y-2=(-9-2)/(6-(-6))(x-(-6))
y-2=(-12/12)(x+6)
y-2=-(x+6)
y-2=-x-6
y=-x-4

Answer 2

Here is a link to the various forms you can have for the equation of a line
http://en.wikipedia.org/wiki/Linear_equation#Forms_for_2D_linear_equations

Notice that your question asks for standard form.

Answer 3

Here is a video of how to do these

http://www.khanacademy.org/video/point-slope-and-standard-form?topic=linear-equations-and-inequalitie