Concept explainers
(a)
To sketch: the graph of the given function.
(a)

Explanation of Solution
Given information:
The function
Graph:
The given function is sketched as shown below.
Interpretation
From the graph, it can be seen that the given function is a constant for all real values of x .
(b)
To find: the nature of the function from the graph and using a table of values of the function.
(b)

Answer to Problem 31E
The given function is constant.
Explanation of Solution
Given information:
The function
From the graph of the function in previous part, it can be seen that, for all values of x from -8 to 8 , the value of f (x ) remains constant at 3. Thus, the given function is a constant function over the interval (-8,8).
Now, the values of the given function for different values of x are shown in the below table.
From the table, it can be verified that, for all the values of x considered, the function remains constant at value 3. Thus,
Chapter 1 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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