Ok I think I've worked this out incorrectly so if someone could point me in the right direction that would be great.....
The question is find the equation of a line that passes through (-1,5) and (2,-4)
I know that
y=mx+c to find M = change in y value divide by change in x value=
2- (-1)/5-(-4) = 3/9 =1/3
so y = 1/3x=c
so 5=1/3(-1)+c
5= -1/3+c
5+-1/3 = c
4 2/3 = c so
y= 1/3x+ 14/3
You see why I need help right?