document.write( "Question 358547: is this a function: f(x) = x + 3 explain \n" ); document.write( "

Algebra.Com's Answer #255885 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "when there is one unique value for f(x), for each a value, then it is a fuction.
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document.write( "f(x) = x + 3 is a function because there is an unique f(x) value for each x value \n" );
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