SOLUTION: which of the following values of b, will cause y=8(b)* to represent exponential decay ? a.3 b. 1/3 c. -3 or d. -1/3 thank you.

Algebra ->  Equations -> SOLUTION: which of the following values of b, will cause y=8(b)* to represent exponential decay ? a.3 b. 1/3 c. -3 or d. -1/3 thank you.      Log On


   

Question 198246: which of the following values of b, will cause y=8(b)* to represent exponential decay ?
a.3 b. 1/3 c. -3 or d. -1/3
thank you.
Answer by RAY100(1637) About Me  (Show Source):
You can put this solution on YOUR website!
y=8b*
.
if * is > 1, we can see that each term will be larger than before,
therefore Exponential Growth
.
if * is <1, each term is a fraction of before, therefore Exponential Decay
.
Therefore answer is b) 1/3