# Math Help - construct a function

1. ## 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.

2. 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 ...

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