The functions are
and
.
Evaluate
.




Thus, the value of function
.
Draw a coordinate plane.
\Graph the functions
,
, and
in the same coordinate axis.
Graph : \ \
\=x_by_2_g(x)=sqrt(x)_(f+g)(x)=2sqrt(x)+x_by_2.gif\")
Observe the above graph :
\Compare the magnitudes of
and
, between 0 and 2 the magnitude of
is greater than
.
Compare the magnitudes of
and
, when x is greater than 6 and 2, the magnitude of
is greater than
.
Graph :
\=x_by_2_g(x)=sqrt(x)_(f+g)(x)=2sqrt(x)+x_by_2.gif\")