How do i graph limits?

1 Answer
Oct 21, 2014

If your function approaches infinity or negative infinity as x approaches your limit you can represent the limit with a line or dashed line:

#f(x)=1/x#

#limx->0+ = oo#
#limx->0- = -oo#

http://www.mathsisfun.com/data/function-grapher.php

If your function does not trail off into infinity or negative infinite as x approaches your function you can represent the limit with an empty circle:

#f(x) = (x - 1)/(x-1)#

#limx->1=#undefined

http://www.mathsisfun.com/data/function-grapher.php