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MAT 150 – Class #24
Topics:• Graphing Rational Functions• Asymptotes
• Vertical • Slanted• Horizontals
• Holes
Rational FunctionsThe function f is a rational function if
where P(x) and Q(x) are polynomials and Q(x)
Ex.
AsymptotesVertical Asymptotes (V.A.):
Horizontal Asymptotes (H.A.):
Asymptotes
𝑦=𝑥−2𝑥2
Blue = Vertical AsymptotesRed = Horizontal Asymptotes
Asymptotes𝑦=
𝑥−2𝑥2−𝑥−6
Blue = Vertical AsymptotesRed = Horizontal Asymptotes
Asymptotes
Blue = Vertical AsymptotesGreen = Slant Asymptotes
Vertical AsymptotesFind the vertical asymptotes
How to Determine Horizontal Asymptotes
Consider the function
1. If n < m,
2. If n = m,
3. If n >m ,
Horizontal AsymptotesFind the Horizontal asymptotes
Slant AsymptotesSlant Asymptotes (S.A.):
Holes:
.
Slant Asymptotes and Holes in Graphs
AssignmentPg. 474-477
#1-7 odd
#9-14 all
#15-19 odd
#42, 46, 47