Answer
Please see image
Work Step by Step
(a)
Make a table, selecting x from -3 to 3
calculating f(x) for each, and plot the points.
Join the points with a smooth line.
(b)
Graphing $|f(x)|$, we take the parts of the graph that are below the x-axis,
and reflect them (only them) across the x-axis.
We leave the other parts of the graph as they are.