How important is it for you to have a clean house The bar
Chapter 11, Problem 11.1.449(choose chapter or problem)
How important is it for you to have a clean house? The bar graph indicates that the percentage of people who find this to be quite important varies by age. The percentage, P(x), who find having a clean house very important can be modeled by the function P(x) 0.04(x 40)2 3(x 40) 104, where x is the number of years a persons age is above or below 40. Thus, x is positive for people over 40 and negative for people under 40. Use the function to solve Exercises 4748. According to the model, at which ages do 50% of us feel that having a clean house is very important? Substitute 50 for P(x) and solve the quadratic-in-form equation. How well does the function model the data shown in the bar graph?
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