Question 5
Consider the function $f(x)$ which when graphed in the $xy$ plane is the \"zig-zag\" described as the sequence
of 5 line segments connecting the following vertices (given in order):
Graph the following functions:
(a) $f(x)$
(b) $f(x+2) - 1$
(c) $3f(x) + 1$
$(-4,0), (-3, 1), (-1,-1), (1, 1), (3, -1), (4, 0)$