
Concept explainers
To estimate the x intercept of the equation

Answer to Problem 78E
(1, 0), (1.5, 0)
Explanation of Solution
Given:
Equation:
Calculation for graph:
Consider
Values of x | Values of y |
0 | -1.5 |
1 | 0 |
-1 | -3.333 |
2 | Infinity |
-2 | -5.25 |
By taking different values of x, the graph can be plotted.
Graph:
Interpretation:
From above graph, it is clear that the graph meets x-axis at
Hence, the x intercept is (1, 0) and (1.5, 0).
Verification:
To find x intercepts, put y = 0,
The roots of a
Applying above formula,
So, the x intercept is (1, 0) and (1.5, 0).
Conclusion:
Therefore, the x intercept of given equation is (1, 0) and (1.5, 0).
Chapter 2 Solutions
Precalculus with Limits: A Graphing Approach
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