Homework Help: Functions

Posted by Shelby on Tuesday, May 22, 2012 at 3:01pm.

What's the best way to solve functions? I can do basic ones, but have trouble with the harder ones.

I'm having trouble with the following:
Inputs x 1, 2, 3, ?
Outputs y 0, 2, 6, ?
I have tried everything and can't come up with the equation. Please help! Also, if you have any tips on how to solve that would be great. Thanks!

Functions - Reiny, Tuesday, May 22, 2012 at 3:13pm
look for patterns
Since you have only 3 cases, that gives very little to go by, but

0 = 0x1
2 = 1x2
3 = 2x3

from the given I would guess at
f(x) = x(x+1) or x^2 + x

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