I haven't done maths in years as I thought I wouldn't ever do it again after school but it has cropped up in university and I've forgotten it all.
I need to plot the following on a graph in Excel
3x + y - 6 = 0 (i)
y - 3x + 2 = 0 (ii)
I need to rearrange this, right?
I was thinking (this is probably wrong)...
(i): y = -3x - 6
(ii): y = 3x + 2
I would appreciate any help and also how to rearrange equations like this. I understand you have to make y the subject here and that you change the sign of something...but I don't know what. :s