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| PAGE: 77 | SET: Exercises | PROBLEM: 21 |
Find 
-intercept :
-intercept : The point where 
.
Observe the graph of the function.
The -intercepts are 
and 
.
Find 
-intercept :
-intercept : The point where 
.
Observe the graph of the function.
The -intercept is 
.
All possible values of is the domain of a function.
The domain is 
or 
.
Range is the corresponding values of the function for different values of .
The range is 
or 
.
The function is increasing for all values of between 
to 
and 
to 
.
The function is increasing over the intervals and 
.
The function is decreasing for all values of between 
to 
and 
to 
.
The function is decreasing over the intervals 
and 
.
If the graph is symmetric about -axis, then it is an even function.
If the graph is symmetric about origin, then it is an odd function.
Observe the graph of the function.
The graph is symmetric about -axis, thus it is an even function.
-intercepts : 
and 
.
-intercept : 
.
The domain is 
or 
.
The range is or 
.
The function is increasing over the interval and 
.
The function is increasing over the interval 
and 
.
Even.
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