16: The domain is
D( f ) = ℝ.
The function should be written as a split function, then find the derivative.
Critical points: The equation
f ′(x) = 0 has solution
x = −1
(the point 1 makes one expression zero, but that expression is not valid
for f at 1).
The derivative does not exist at x = 2.
Intervals of monotonicity will be
(−∞,−1],
[−1,2], and
[2,∞).
Determine monotonicity and local extrema using a chart.
Next hint
Answer