find an equation for the line below

Question

anonymous · Answer

attachment

skullpatrol · Answer

Any ideas?

anonymous · Answer

not at all

jim766 · Answer

what are two points that you can see?

anonymous · Answer

(-6,-1) & (4,-3)

skullpatrol · Answer

Go to YouTube and watch the Khan Academy videos on the equation of a line :)

jim766 · Answer

use formula to find slope
x2-x1
-----  = m
y2 -y1

jim766 · Answer

-3 - - 1
-------   = ------
4 -  - 6

anonymous · Answer

4+ 6/ -2+1= 10/-2 =5

anonymous · Answer

-3+1 *

jim766 · Answer

right

anonymous · Answer

so is it =-1/5 or is it -5?

jim766 · Answer

it is   - 1/5

you did it right the first time, except you put the x's on the top
and y's on the bottom

jim766 · Answer

once you have a slope all you need is a y intercept

anonymous · Answer

thats the formula you gave me... but ok. and then how do i make the equation?

jim766 · Answer

oh yeah sorry.....i see i screwed that up

jim766 · Answer

y = mx + b,      b is the intercept, m is the slope
                         we can substitute the x and y from one of your points

-1 = (-1/5)(-6) + b           now need to solve for b

anonymous · Answer

-11/5?

jim766 · Answer

yeah   can you  make it a mixed number?

anonymous · Answer

-2 1/5

anonymous · Answer

so the answer would be y=-1/5x-11/5 ?

jim766 · Answer

good now take the slope and the y intercept and put together

y = -1/5x - 2 1/5        

look at the picture is the y intercept look like it is -2 1/5

jim766 · Answer

y = -1/5x - 11/5