Limits can be written to describe the behavior of a
function as the value of 'x' approaches a value from a positive
or negative direction. We can also solve for a limit as the
function approaches from each direction. When evaluating a limit
from the left, we are approaching the limit from the left with
increasing values of 'x'. This is written as:

$\underset{x\to {c}^{-}}{lim}\mathrm{f(x)}$

In this example, we evaluate

$\underset{x\to {2}^{-}}{lim}\frac{x+4}{x-2}$

$\underset{x\to {c}^{-}}{lim}\mathrm{f(x)}$

In this example, we evaluate

$\underset{x\to {2}^{-}}{lim}\frac{x+4}{x-2}$

One-sided infinite limits from negative direction

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