Let $$f(x) = \begin{cases} 3 + x, & x < 1, \\ 5 - x, & x \geq 1. \end{cases}$$ 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 $\infty$ and -I for $-\infty$. If you have more than one point, give them in numerical order, from smallest to largest. If you have extra boxes, fill each in with an x .

Point 1: $C =$
$\displaystyle{\lim_{x \rightarrow C^{-}} f(x)}$ =
$\displaystyle{\lim_{x \rightarrow C^{+}} f(x)}$ =

Point 2: $C =$
$\displaystyle{\lim_{x \rightarrow C^{-}} f(x)}$ =
$\displaystyle{\lim_{x \rightarrow C^{+}} f(x)}$ =

Point 3: $C =$
$\displaystyle{\lim_{x \rightarrow C^{-}} f(x)}$ =
$\displaystyle{\lim_{x \rightarrow C^{+}} f(x)}$ =