Rational+Review

Rational Functions Review Oct 31 2011 Britt Lee

Today we went through and answered the questions everyone submitted for the poll, here's an example of one question: 1) Solve -5/x-4 < 3/x+1 0 < 3/3x+1 - (-5/4x) 0< 3/x+1 + 5/x+4 0< (3(x-4) + 5(x+1)) / (x+1)(x-4) 0< (3x-12 + 5x + 5) / (x+1)(x-4) 0< (8x-7) / (x+1)(x-4) Therefore, x= 7/8, x= -1, and x= 4

Major Points: Characteristics of reciprocal functions (where the parent function is y= +/- 1 the reciprocal function will also pass through those points, finding zeroes, y-int, end behaviours, finding H.A and V.A etc) Asymptotes (H.A when degree of g(x)>f(x), H.A when degree of g(x)=f(x) etc) Graphing Rational Funcations (using the equation ax+b/cx+d) Solving Rational Equations Solving Rational Inequalities

Make sure to finish your review test and check the answers, **beware that some solutions posted may be incorrect. Good luck errbody!