Classify the model as exponential growth or decay. Identify growth or decay factor and the percent of increase or decrease per time period.
a) y=40(0.75)^t
please explain

Question

Classify the model as exponential growth or decay. Identify growth or decay factor and the percent of increase or decrease per time period.
a) y=40(0.75)^t
please explain

anonymous · Answer

since $.75<1$ it is decay

anonymous · Answer

multiplying a number by $.75$ decreases it by 25%

anonymous · Answer

and how do you find the second part?

anonymous · Answer

the second post was the second part

anonymous · Answer

what if it is 6/5 instead of .75, how would you find that?

agent0smith · Answer

6/5 is greater than 1, so it's exponential growth.

The growth factor will be$$ 6/5 - 1 = 1.2 - 1 = ? $$

anonymous · Answer

.2

agent0smith · Answer

Sorry, the growth factor will be the 6/5 or 1.2. 

The percent of increase per time period will be 
$$(1.2−1)×100 % $$

anonymous · Answer

ok thanks alot