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how to differentiate???
i know that integrating is to find teh area below a line on a graph. so if it was (2,2) then the integral would be the area directly underneth it (4???).
but wat is differentiating??? i have not beeen taut dis yet. i missed a leson.
also, wat is y=mx+c??? does dis have to do with differentiating??? or is dat the equaton of strait line? i have no idea what it means. and why do we use it????what purpus?
thank in advanse
Differentiating is more than one lesson!
Think of it as finding the slope of a line. Hopefully you will be taught the details.
y=mx+c is the Equation of a Straight Line
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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In a nutshell, differentiation allows you to find the slope of any function.
it is written as
The simplest of the many formulas is:
Say that you want to find the slope at x=4 for y=x²:
If you want to find the slope at x=-8 for y=x²+x-1:
You'll notice that you can use it for straight line equations too:
Last edited by Toast (2006-11-15 02:27:34)
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dear toast and mathsisfun,
what does f(x) mean? what is f?
thank you for all yor help
dear mathsisfun,
you have very nise site
my english not good
plz . need help soon.
f is just a name for a function ... you could also write g(x), fred(x) or any name you want. The "x" is the name of the variable that f "takes in" to get its result.
So f(x)=2x just means that "f" takes in "x" and gives back 2 times x.
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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