Which is an exponential decay function? O fm =3(5)
O $
(x) =} (*)*
o flw=109
O 1 =(-3)

In mathematics, exponential decay describes the process of reducing an amount by a consistent percentage rate over a period of time. It can be expressed by the formula y=a(1-b)x wherein y is the final amount, a is the original amount, b is the decay factor, and x is the amount of time that has passed.

Step-by-step explanation:

look a the sides they are perpendicular