SOLUTION: how to graph a function

Question 59493: how to graph a function
Answer by funmath(2933) (Show Source): You can put this solution on YOUR website!
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.

Happy Calculating!!!
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