Concept explainers
We opened the section with a comment about our improving emotional health with age. We also saw an example indicating people become less neurotic as they get older. How can this be explained? One theory is that key centers of the brain tend to create less resistance to feelings of happiness as we age. The graph shows the average resistance to happiness, on a scale of 0 (no resistance) to 8 (completely resistant), for persons at various ages.
Source: L. M. Williams, “The Mellow Years? Neural Basis for improving stability over Age.“ THE JOURNAL OF NEUROSCIENCE, June 14, 2006
The data in the graph above can be modeled by the formula
where R represents the average resistance to happiness, on a scale of 0 to 8, for a person who is x years old. Use this formula to solve Exercises 89 –92.
What is the difference between the average resistance to happiness at age 20 and at age 70?
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Check out a sample textbook solutionChapter 1 Solutions
EBK INTERMEDIATE ALGEBRA FOR COLLEGE ST
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