Sunday, January 8, 2012

Function Notation

Hello Everybody. Now i am going to teach you about function notation.


First lets get the formulas:




(f + g)(x)= add equations


(f - g)(x)= subtract eqns


(f *g)(x)= multiply (closed circle)


(f/g)(x)= divide


(f o g)(x) or f(g(x))= replace all x's in the f(x) eqn w/ the eqn g(x)




Now lets do a few examples so you can get the hang of it. YAYYYYYYYY




ex 1: f(x)= x + 4 g(x)= x + 2. Find the rule for (f + g)(x)




you simply just add the equations




(x + 4) + (x + 2)= 2x+6




ex 2 " "

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