Sunday, 19 February 2012

What is a function?

1) A function is often described as a machine as it consists of an input and output.
An example of a function:
f(x)=x^2 (Where y=x^2)
So if x=2,
So an input of 2, gives an output of 4.
2) y is dependent on x.
3) Yes. There is a relationship between x and y in which if x changes, y changes too.

Done by Wei Qin and Lindsay

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