document.write( "Question 1196554: A definition of a function \n" ); document.write( "
Algebra.Com's Answer #829439 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "\n" ); document.write( "function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable)\r
\n" ); document.write( "\n" ); document.write( "A function relates an input to an output.\r
\n" ); document.write( "\n" ); document.write( "Formal Definition of a Function:\r
\n" ); document.write( "\n" ); document.write( "A function relates each element of a set with exactly one element of another set
\n" ); document.write( "(possibly the same set).
\n" ); document.write( "
\n" );