# construct a function

• Feb 5th 2010, 02:31 PM
phalange
construct a function
construct a function f(x) such that lim as x appr 4 =6 and f(x) is not defined.

I know there are multiple answers, however I would like to see what people come up with.

thanks.
• Feb 5th 2010, 02:36 PM
skeeter
Quote:

Originally Posted by phalange
construct a function f(x) such that lim as x appr 4 =6 and f(x) is not defined.

I know there are multiple answers, however I would like to see what people come up with.

thanks.

very basic ...

$\lim_{x \to 4} \frac{x^2-2x-8}{x-4}$