document.write( "Question 1133972: Determine whether or not the equation represents y as function of x?
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\n" ); document.write( "x^2-y^2=9
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Algebra.Com's Answer #751226 by josgarithmetic(39617)\"\" \"About 
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No, because the equation has more than one x value for each y value. \n" ); document.write( "
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