\
\
(a)
\Observe the graph.
\At , the function is
units above
axis.
Therefore the point lies on the graph
.
Hence, .
(b)
\Observe the graph.
\At ,the function is located
units below
axis.
Therefore the point lies on the graph
.
Hence, .
\
(c)
\Find the value of where the graph
.
Observe the graph.
\ at
and
.
Hence, and
.
(d)
\Find the value of where the graph
.
Observe the graph.
\ at
.
Hence, .
(e)
\The domain of consists of all values of
on the graph of
.
is defined for
.
The domain of is
.
The range of consists of all values of
on the graph of
.
takes all the value from
to
.
The range of is
.
(f)
\Observe the graph.
\ increases for all the values of
between
increases on the interval
.
\
(a) .
(b) .
(c) and
.
(d) at
.
(e) Domain of is
and range of
is
.
(f) .