Math Is Fun Forum

mukesh

Member

Registered: 2010-07-18

Posts: 31

about graphing

how can i graph the ratiponal function     x-4/x-2

Anakin

Member

Registered: 2009-10-04

Posts: 145

Re: about graphing

Find the domain: x is not equal to 2
Find the x-int (by setting x=0) and y-int (by setting y=0).
Find the vertical, horizontal/oblique asymptotes.
Find the end behavior as x approaches the vertical asymptote from the left and right side, as well as it approaches positive and negative infinity.
Lastly, find if the function is above or below the horizontal/oblique (horizontal in this case) as x approaches positive/negative infinity.

Those are the steps. See if that helps, if not post again and someone can explain each step.

Here is what it should look like: Plot of (x-4)/(x-2)