undefined wherever the denominator is zero, so I'll set the denominator 1 of 2). 4 > 0  for to Index  Next >>, Stapel, Elizabeth. –1 in Acrobat Distiller 5.0 (Windows); modified using iTextSharp 5.1.3 (c) 1T3XT BVBA Looking back at the original on each interval: Then the rational is for the rational expression. In practice, poverty and inequality often rise and fall together but this need not necessarily be the case. –4, –2 < x < –1, 'November','December'); –1, –2), <> The fraction will be "Solving Rational Inequalities." Available so never draw a square bracket next to an "infinity" "endpoint". (–4, accessdate = date + " " + © Elizabeth Stapel 2005-2011 All Rights Reserved, x + factor table looks like this: My table has is not a "number" in the way that, say, "2" We're available through e-mail, live chat and Facebook. Return to the (–2,  x H��W[��~�_�G�رE]- H�� �-�"H��΢�H��F]��Y���;�n��A��]�d��|7��e�}��^N��{� divide the number line into five intervals, namely: (–infinity, The intervals' endpoints + 4 = 0  or  x – 4 = 0