Let
f(x) = \begin{cases}
-3 x, & x < 5, \\
1, & x = 5,\\
3 x, & x > 5.
\end{cases}
Find each point of discontinuity of f , and for each
give the value of the point of discontinuity and evaluate the
indicated one-sided limits.

** Note: **
You use ** I ** for ** -I ** for ** x **.

Point 1:

Point 2:

Point 3:

You can earn partial credit on this problem.