Monday, June 2, 2008

Asymptotes



Find the asymptotes of the function
(x^2-4x+5)

f(x)= ---------------

x + 3
Answer: vertical asymptote is x=-3 because f(x) is not defined at that value.
If the degree of the numerator is bigger than the denominator, there is no horizontal asymptote.
for slant/oblique asymptote divide numerator by denominator
x+3 ) x^2-4x+5 (x-7
x^2+3x
___________________
-7x+5
-7x-21
__________________
26
y= f(x) = (x-7) + 26 / (x+3)

y= x-7 is the slant/oblique asymptote.

Get online teaching jobs. Work from the comfort of your home, be an online tutor with TutorVista.com. Know more about teaching jobs.

Hello world!

Welcome to Wordpress.com. This is your first post. Edit or delete it and start blogging!