1. The problem statement, all variables and given/known data Find the horizontal asymptote(if there is one) using the rule for determining the horizontal asymptote of a rational function for (x^2+x-12)/ (x^2 -4) 2. Relevant equations 3. The attempt at a solution the degree of the numerator and denominator are both 2. Y=(An)/(Bn) Y=1/1 Y=1 When I do the math, the horizontal asymptote is the line y=1. However when I graph this equation on a TI- 84 plus graphing calculator, if i use the trace, or table functions, the part of the graph that does not appear to cross the line y=1, does. Why is this?