The Mexican long-tongued bat population is an endangered species, which decreases at a rate of 3.5% per year in a wildlife preserve that currently has 80 of them.

Question

What type of function will model the population?

A)constant
B)exponential growth
C)linear decay
D)linear growth
E)exponential decay

Is it E)?

Answer 1

Well,
we know it can't be A, since it is changing
we know it can't be B, since it is not growing
not C or D, since it clearly is not linear.

is it exponential ? yes
Is it decay, is it getting less ? Yes

so .....

Answer 2

okay thank you