Question 59493
There's all kinds of functions can you be more specific.  I'd hate to graph a line for you when you need to be graphing something much more complex.  Here's a line that I showed someone earlier, let me know if you want something else:
:
  I need to graph
 
  f(x) = 3x-2

  Notice that this is a linear function.  It is graphed the same way you would graph: y=3x-2.  f(x) and y mean the same thing, it's just a different notation.
:
Let x=0
f(0)=3(0)-2
f(0)=0-2
f(0)=-2  Plot (0,-2)
:
Let x=2  (you can pick anything for x by the way, why don't you pick a couple of other numbers, and you'l find that they fall on the line as well)
f(2)=3(2)-2
f(2)=6-2
f(2)=4  Plot (2,4)
With linear functions, you only need two points to make a graph unless otherwise specified.  Connect the points and you have this line.
{{{graph(300,200,-10,10,-10,10,3x-2)}}}
Happy Calculating!!!