The time it takes an average athlete to swim 100 meters freestyle at age x years can be modeled as tx) 0.181x2 - 8.463x 147.376 seconds.t (a) Numerically estimate to the nearest tenth the rate of change of the time for a 14-year-old swimmer to swim 100 meters freestyle. 3.4 seconds per year (of age) (b) Determine the percentage rate of change of swim time for a 14-year-old. (Round your answer to one decimal place.) 5.28 x % per year (of age) (c) Is a 14-year-old swimmer's time improving or getting worse as the swimmer gets older? The negative rate of change shows that swim time is decreasing .The swimmer's time is improving
The time it takes an average athlete to swim 100 meters freestyle at age x years can be modeled as tx) 0.181x2 - 8.463x 147.376 seconds.t (a) Numerically estimate to the nearest tenth the rate of change of the time for a 14-year-old swimmer to swim 100 meters freestyle. 3.4 seconds per year (of age) (b) Determine the percentage rate of change of swim time for a 14-year-old. (Round your answer to one decimal place.) 5.28 x % per year (of age) (c) Is a 14-year-old swimmer's time improving or getting worse as the swimmer gets older? The negative rate of change shows that swim time is decreasing .The swimmer's time is improving
Chapter6: Exponential And Logarithmic Functions
Section6.7: Exponential And Logarithmic Models
Problem 16TI: Recent data suggests that, as of 2013, the rate of growth predicted by Moore’s Law no longer holds....
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