document.write( "Question 108981This question is from textbook
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document.write( ": graph including any oblique asymptotes (x^2+5)/(x+1). I know how to graph it in a calculator. this problem is one found on pg 300 matched problem 6. I am not understanding how to do this problem based of the example given to me on the previous page. I have the answer in the book. it is all done on a gragh but I don't understand how to mathmatically work this out I can do it on a calculator but I need to know how to show this with out a calculator. \n" );
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Algebra.Com's Answer #79464 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! Let's do some analysis. \n" ); document.write( "When you look at the function, \n" ); document.write( "1. When does the denominator go to zero? \n" ); document.write( "2. What happens when x gets very large in the positive direction? \n" ); document.write( "3. What happens when x gets very large in the negative direction? \n" ); document.write( "Let's look at each question. \n" ); document.write( "1. The denominator goes to zero at x=-1. \n" ); document.write( "So at x=-1, your function is undefined. \n" ); document.write( "Just to the right of it, the function goes near positive infinity (x+1>0). \n" ); document.write( "Just to the left of it, the function goes near negative infinity (x+1<0). \n" ); document.write( "So at x=-1, you have a vertical asymptote. \n" ); document.write( "2. As x gets very large positively, \n" ); document.write( " \n" ); document.write( "So for very large x, the function looks like y=x. \n" ); document.write( "As an example, at x=100, \n" ); document.write( " \n" ); document.write( "So you have another asymptote that looks like the function y=x. \n" ); document.write( "3. As x gets very large negatively, \n" ); document.write( " \n" ); document.write( "So for very large x, the function also looks like y=x for large positive x \n" ); document.write( "As an example, at x=-100, \n" ); document.write( " \n" ); document.write( "So you have another asymptote that looks like the function y=x for large negative x. \n" ); document.write( "But it all together and you can graph the function.\r \n" ); document.write( "\n" ); document.write( " |