Question

0

Answer 1

@mathmale

Answer 2

Hint: If the quantity (1+r) satisfies 0<(1+r)<1 you've got an exponential decay function.
If the quantity (1+r) satisfies 1<(1+r), you've got an exp. growth function.

Use this info to determine whether any of the given r values would result in an expo. decay function.

Answer 3

I'd suggest that you check very carefully to ensure that you've copied this problem down correctly. At first glance, I don't find a value for r that makes this given function an expo decay function.

Answer 4

but none of the answers make sense.

Answer 5

i know but i copied and pasted so the answers are all the same as the original problem.

Answer 6

We must be missing something here. All my experience says that if (1+r) comes out to a positive number between zero and one, we've got a decaying exponential. To get that, r would have to satisfy -0.99 < r < -0.01, providing us with a base of 0.01 < base < 0.99. Hope someone else has the key to this problem. Good luck to you!