Answer
(a) As can be seen from the graph, function $g$ can be obtained by
reflecting the negative part of function $f$ around the x-axis.
(b) Similar to case (a), function $g$ can be obtained by
reflecting the negative part of function $f$ around the x-axis.
(c) In general, if $g(x)=|f(x)|$, function $g$ can be obtained by
reflecting the negative part of function $f$ around the x-axis.
Work Step by Step
see above.