Question

How do you determine the limit of `(x + 5)/(x-4)` as n approaches `-4^-`?

Answer 1

As `xrarr-4` (from either side), the denominator does not go to zero. So substiutute.

Explanation:

`lim_(xrarr-4)(x+5)/(x-4) = ((-4)+5)/((-4)=4) = 1/((-8)) = -1/8`