SOLUTION: Without graphing, determine whether the function y = 7(0.28)^x represents exponential growth or exponential decay.

Algebra ->  Trigonometry-basics -> SOLUTION: Without graphing, determine whether the function y = 7(0.28)^x represents exponential growth or exponential decay.      Log On


   

Question 628468: Without graphing, determine whether the function y = 7(0.28)^x represents exponential growth or exponential decay.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
In general, for y=a%2Ab%5Ex, if 0%3Cb%3C1, then this represents exponential decay.

Also, for y=a%2Ab%5Ex, if b%3E1, then this represents exponential growth.

Since b=0.28, this means that 0%3Cb%3C1 is true (since 0%3C0.28%3C1 is true)

So this function represents exponential decay.

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