I'm doing math homework and have been away and just came back so missed a few lessons. I have homework to do and dont know how do do the following

Draw the graph y=3x -1

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- Jan 11th 2010, 11:41 AMmitchnufchelp been on holiday
I'm doing math homework and have been away and just came back so missed a few lessons. I have homework to do and dont know how do do the following

Draw the graph y=3x -1 - Jan 11th 2010, 11:44 AMe^(i*pi)
1) Pick 3 points and plot their values - the resulting line will go through all of them and be the right line

f(x) = 3x-1

f(-1) = -4

f(0) = -1

f(1) = 2

2) Start with f(0) and find that [f(0) = -1]. From there go up 3 for every 1 to the right and down 3 for every one to the left - Jan 11th 2010, 11:53 AMmitchnufcThanks
Thanks for the quick reply I am still totally lost on these graphs for some reason when i normally get most things straight away.

- Jan 11th 2010, 12:16 PMskeeter
go to the link and make up the lessons you missed.

http://www.purplemath.com/modules/graphlin.htm