
Concept explainers
To find the asymptotes and holes of the function

Answer to Problem 69E
Explanation of Solution
Given:
Function:
Calculation:
Intercepts:
Let
To find x intercepts, put y = 0,
So, x intercepts are (0.5, 0) and (1, 0)
To find y intercepts, put x = 0,
So, y intercept is (0, 0.5).
Asymptotes:
Vertical asymptotes:
To find vertical asymptotes, put denominator of the given function equal to zero.
Horizontal asymptotes:
As the degree of numerator is larger than the degree of the denominator, the horizontal asymptote does not exist for given function.
Slant asymptotes:
To find slant asymptote, divide given function numerator with denominator using long division.
Dividend:
Divisor:
Here, quotient is
So, the slant asymptote is
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 | 0.5 |
1 | 0 |
-1 | 6 |
2 | 0.75 |
-2 | Infinity |
By taking different values of x, the graph can be plotted.
Graph:
Interpretation:
By observing graph, it is clear that
The x intercepts are (0.5, 0) and (1, 0),
The y intercept is (0, 0.5),
The vertical asymptotes are
The slant asymptote is
Chapter 2 Solutions
Precalculus with Limits: A Graphing Approach
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