\
(a)
\Find
and
.
Observe the graph of the function
:
At
, the value of
is
.
At
, the value of
is
.
Thus,
and
.
(b)
\Find
and
.
Observe the graph of the function
:
At
, the value of
is
.
At
, the value of
is
.
Thus,
and
.
\
(c)
\Observe the graph of the function
:
The point corresponding to
is above the
- axis.
.
Thus,
is positive.
\
(d)
\Observe the graph of the function
:
The point corresponding to
is below the
- axis.
.
Thus,
is negative.
\
(e)
\Observe the graph of the function
:
At
,
, and
the value of
.
Thus, the values of
,
and
.
\
(f)
\Observe the graph of the function
:
For the interval
and
, the function
.
Thus, the intervals are
and
.
\
(g)
\Observe the graph of the function
:
The domain of
is
.
\
(h)
\Observe the graph of the function
:
The range of
is
.
\
(i)
\
-intercepts are the values of
, where the graph touches the
-axis.
Observe the graph of the function
:
The
-intercepts are
and
.
\
(j)
\
-intercepts are the values of
, where the graph touches the
-axis.
Observe the graph of the function
:
The
-intercept is
.
\
(k)
\The horizontal line
will intersects the graph at 3 times.
\
(l)
\The vertical line
will intersects the graph once.
\
(m)
\Observe the graph of the function
:
At
and
the value of
.
Thus, the values of
and
.
\
(n)
\Observe the graph of the function
:
At
and
the value of
.
Thus, the values of
and
.
(a)
and
.
(b)
and
.
(c) Positive.
\(d) Negative.
\(e)
.
(f)
and
.
(g)
.
(h)
.
(i)
and
.
(j)
.
(k) 3 times.
\(l) Once.
\(m) 
(n)
.