Concept explainers
To Find:
The value of t for which the model no longer allows for realistic predictions.
Answer to Problem 88SR
From the year 2025 , the model no longer allows for realistic predictions.
Explanation of Solution
Given Information:
The number of quadruplet births Q in the United States in recent years can be modeled by
Calculation:
Plot the graph of the given equation using the Graphing Calculator:
We know that when the quadruplet births becomes 0 , it will be difficult to make realistic predictions , since there are no longer births .
Through the graph , clearly , we can see that the graph starts taking negative Q-values after Q=0 .So, we find the time t when Q=0 and after that , it will be hard for the model to make realistic predictions:
Substituting = 0 in the equation
From the graph , we have (22.351,0) as the point on the graph , when it cuts the x-axis.
So, after
So, year = 2002+22 = 2024
Hence , after the year 2024 , that is from the year 2025 , the model no longer allows for realistic predictions.
Chapter 9 Solutions
Algebra 1
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