Concept explainers
To find the asymptotes and holes of the function
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Answer to Problem 66E
Explanation of Solution
Given:
Function:
Calculation:
Intercepts:
Let
To find x intercepts, put y = 0,
So, x intercept is (0.667, 0).
To find y intercepts, put x = 0,
So, y intercept is (0, -2).
Asymptotes:
Vertical asymptotes:
To find vertical asymptotes, put denominator of the given function equal to zero.
Horizontal asymptotes:
As the degree of numerator is equal to the degree of the denominator, the horizontal asymptote is
Slant asymptotes:
As the degree of numerator is equal to the degree of the denominator, the slant asymptote does not exist for given function.
Holes:
Here, the given function contains one common factor in numerator and denominator i.e..,
To find hole of the function, equate common factor equal to zero.
So, the hole of function is
Calculation for graph:
Consider
Values of x | Values of f (x) |
0 | -2 |
1 | 0.333 |
-1 | 5 |
2 | Undefined |
-2 | 1.1818 |
By taking different values of x, the graph can be plotted.
Graph:
Interpretation:
By observing graph, it is clear that
The x intercept is (0.667, 0),
The y intercept is (0, -2),
The vertical asymptotes are
The horizontal asymptote is
Chapter 2 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
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