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Graphing Functions
by aoife0509 Junior Cert Mathematics — 25/11/16 2

How do you do functions i dont understand how to get f(x) and then graph it

IrishJuniorCert — 20/11/16
I think Alex is complicating this a bit much. As far as I'm aware, you fully understand functions, just not how to graph them. Well, it's pretty easy once you know that: x = your input. y = your output. so say your x = 4. Then on the X Line, you are +4 across. Input: 4 Function: x + 1 Output: 5 So the x value is 4 and the y value is 5. You can now graph your line. As Alex said, there will be much more complex types of functions where x will be squared and this will give you a parabola.
aoife0509 — 21/11/16
Thanks for your help i understand it a bit more nw
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