Math Is Fun Forum

Daniel7

Guest

fractions!!!!!

What is F(-2)???

JohnnyReinB

Member

Registered: 2007-10-08

Posts: 453

Re: fractions!!!!!

I guess you just have to place that number into the equation, replacing x:

and simplifying it.

             

Or maybe there's something more to functions that I don't know of...

P.S. I'm just fooling around here with the LaTeX

Last edited by JohnnyReinB (2008-05-19 01:29:46)

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"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted"

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SvenBee

Member

Registered: 2008-03-08

Posts: 106

Re: fractions!!!!!

That's right Johnny just to clarify. You replace all "X" in the function with whatever number is in the function notation "F(whatever)"

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e...the red-headed stepchild of math.

Jai Ganesh

Administrator

Registered: 2005-06-28

Posts: 46,244

Re: fractions!!!!!

I guess you just have to place that number into the equation, replacing x:

There's a minor mistake there.

After replacing x by -2, you get

Cancelling the minus sign in the numerator and the denominator,

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It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

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