a.
To graph: the function
a.

Explanation of Solution
Given:
Graph:
Interpretation: graph of the function has three real zeroes.
b.
To graph: the inverse relation of function
b.

Explanation of Solution
Given:
Graph:
Interpretation: the graph of the relation has one zero. And the relation is many one relation, i.e. many values of f(x) exist for one value of x .
c.
To find: whether the inverse relation is an inverse function or not.
c.

Answer to Problem 111E
The inverse relation is not an inverse function.
Explanation of Solution
Given:
Concept used:
For a relation f(x) to be a function graph of f(x) should not have any vertical line which crosses it twice, i.e. if any vertical line cuts the graph at two or more points then the relation is not a function.
As there exist more than one value of f(x) for
Chapter 1 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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