document.write( "Question 456752: can you explain why f represents the graph of a function
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Algebra.Com's Answer #313448 by richard1234(7193)\"\" \"About 
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It's just standard notation to denote a function in terms of x as f(x). I guess mathematicians chose f since function begins with f. Note that f is not a variable on its own, and other letters could denote other functions (e.g. h(x), zeta(x)). \n" ); document.write( "
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