Concept explainers
(a)
To graph: The function
(a)
Explanation of Solution
Given information:
The function
Graph:
Let
Steps for graphing an equation using a graphing utility:
Step 1: Press ‘ON’ key.
Step 2: Press [Y=] key. From the
Step 3: Press
The window shows the graph of the function
It is observed that, the zero of
Interpretation:
The graph shows the graph of a function
(b)
The
(b)
Answer to Problem 12CR
Solution:
The local
Explanation of Solution
Given information:
The function is
Explanation:
A local maximum point on a function is a point
A local minimum point on a function is a point
From the part (a), the graph of the function is
By looking the it is observed that local maxima is
(C)
The interval on which
(C)
Answer to Problem 12CR
Solution:
The increasing interval of a function is
Explanation of Solution
Given information:
The function is
Explanation:
A function is increasing when the
From the part (a), the graph of the function is
By looking the graph, the function is increasing for the interval
Therefore, increasing interval of a function is
Chapter 11 Solutions
Precalculus
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