Find the limit, if it exists. lim x→−8 5x + 40 |x + 8|

Recall that



For the limit to exist, the limits from either side must also exist and match up. When , we're considering the domain , which corresponds to the second case in the piecewise definition above, i.e. . So we have



On the other hand, as , we're assuming , so that , in which case



The limits do not match because they differ by their sign, so the original limit does not exist.

Okay so it will be 1123

The scale factor of what ?