Concept explainers
The function
Source: Laura Weather Nathan son, The Portable Politician for Parents
a. Describe how the graph can be obtained using transformations of the square root function
b. According to the model. What is the median bight of girls who are 48 months, or 4 years. old? Use a calculator and round to the nearest tenth of an inch The actual median height for girls at 48 months is 40.2 inches How well does the model describe the actual height?
c. Use the model to find the average rate of change, in inches per month, between birth and 10 months, Round to the nearest lenth.
d. Use the model to find the average rate of change, in inches per month, between 50 and 60 months. Round to the nearest tenth. How does this compare with your answer in part (c)? How is this difference shown by the graph?
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