document.write( "Question 250434: Is y a function of x? y= -2x-2 \n" ); document.write( "
Algebra.Com's Answer #182342 by chosenpoint(26)\"\" \"About 
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Functions/250434 (2009-12-15 21:44:44): Is y a function of x? y= -2x-2
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\n" ); document.write( "\n" ); document.write( "To determine if y is a function of x, we only need to see that for each x, there is one and only one y output.
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\n" ); document.write( "\n" ); document.write( "In this case, we see that y is a linear equation, and for each x we input into the function, we can get one and only one single value of y.
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\n" ); document.write( "\n" ); document.write( "This means that we do have a function.
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\n" ); document.write( "\n" ); document.write( "There can be much discussion about functions and their importance, but for the most part, the 1 to 1 aspect of any single x value to any single y value is the the most important of the function.
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\n" ); document.write( "\n" ); document.write( "I hope this helps. :)
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