document.write( "Question 162388This question is from textbook Algebra 1
\n" ); document.write( ": How do you write an equation in funtion notation? \n" ); document.write( "
Algebra.Com's Answer #119679 by gonzo(654)\"\" \"About 
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an equation in function notation would be
\n" ); document.write( "f(x) = the relationship you are looking for.
\n" ); document.write( "examples:
\n" ); document.write( "f(x) = x^2 + 1
\n" ); document.write( "f(x) = 2*x + 33
\n" ); document.write( "f(x) = square root of (x-3)
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\n" ); document.write( "if you let y = f(x), then these equations become
\n" ); document.write( "y = x^2 + 1
\n" ); document.write( "y = 2*x + 33
\n" ); document.write( "y = square root of (x-3)
\n" ); document.write( "-----
\n" ); document.write( "you are solving the same equation.
\n" ); document.write( "the only difference is you are calling the dependent variable f(x) rather than something else like y.
\n" ); document.write( "your answer, instead of being y = 7, would be f(x) = 7.
\n" ); document.write( "different functions are called with different names, like
\n" ); document.write( "f(x)
\n" ); document.write( "g(x)
\n" ); document.write( "m(x)
\n" ); document.write( "-----
\n" ); document.write( "they all mean the same thing except they have different names because the functions are different and you need to differentiate between them.
\n" ); document.write( "f(x) = x
\n" ); document.write( "g(x) = 2*x
\n" ); document.write( "etc
\n" ); document.write( "-----
\n" ); document.write( "f(x) and g(x) are both functions of x \n" ); document.write( "
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