Jse the graph of the function $f(x)$ to find the following limits$.$ Give an exact answer if a $1$ Otherwise, enter $-$ or $$ if a limit is infinite, or enter DNE if a limit does not exist in ano

a$.$ As $x$ approaches $1$ from the right, $f(x)$ approaches $$

b$.$ As $x$ approaches $1$ from the left, $f(x)$ approaches $$

c$.\underset{x1}{lim}f(x)=$

d$.\underset{x4}{lim}f(x)=$

e$.f(4)=$