Which of the following statements is the best description of exponential decay?
A.
Exponential behavior occurs when a function increases at a rate of increasing value.
B.
Exponential behavior occurs when a function increases at a rate of decreasing value.
C.
Exponential behavior occurs when a function increases or decreases at a rate proportional to its current value.
D.
Exponential behavior occurs when a function increases or decreases at a rate proportional to its initial value.

Question

Which of the following statements is the best description of exponential decay?
A.
Exponential behavior occurs when a function increases at a rate of increasing value.
B.
Exponential behavior occurs when a function increases at a rate of decreasing value.
C.
Exponential behavior occurs when a function increases or decreases at a rate proportional to its current value.
D.
Exponential behavior occurs when a function increases or decreases at a rate proportional to its initial value.

anonymous · Answer

D. 
Exponential behavior occurs when a function increases or decreases at a rate proportional to its initial value.

mathmale · Answer

Hint:  decay implies decrease; growth implies increase.
Please look up "exponential decay" in your textbook or through an Internet search and compare what you read in either place to the several answer options given.  Exponential growth and decay are extremely common and important concepts in science and math, and you'd be doing yourself a favor to dig up info on them and learn their meaning.

anonymous · Answer

ok thank you...

anonymous · Answer

@DUDE..IM..A..DUCK could u help me set one up cuz i dont know how

mathmale · Answer

Here's a quick and rough sketch of an example of expo decay:|dw:1389964608047:dw|