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In the year 1997, the surface elevation of Lake Powell was 3899 feet above sea level. In the year 2004, the surface elevation of Lake Powell was 3353.7 feet above sea level.
Interpret the rate of change in this situation.
The surface elevation of Lake Powell is either decreasing or increasing and
at a rate of feet every 7 years? feet per year? feet? or years? choose one

Respuesta :

The rate of change of the surface elevation of Lake Powell is;

Rate of change every 7 years = Decreasing at 545.3 ft every 7 years

Rate of change per year = Decreasing at 77.9 ft per year

  • Surface elevation of lake powell above sea level in 1997 = 3899 ft
  • Surface elevation of lake powell above sea level in 2004 = 3353.7 ft

  • From 1997 t0 2004 is 7 years.

       This means rate of change for 7 years = 3899 - 3353.7 = 545.3 ft

       Rate of change every 7 years = 545.3 ft every 7 years

  • Now, since after 7 years, the decrease is 545.3 ft , then to find the rate of change for each year, we will just divide this decrease in rate by 7 to get;

       545.3/7 = 77.9 ft

Thus, rate of change per year = 77.9 ft per year

Read more at; https://brainly.com/question/20705459

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