Y= 100 (1- 1/2) ^t

decay or growth

Decay

Step-by-step explanation:

We are given an equation

We need to say about decay or growth of exponential function.

Exponential function:

Where,

For decay: 0<b<1

For growth: b>1

Now we rewrite the equation into this form

Changes to

Here, b=0.5 < 1

Therefore, The given function would be decay.

Thus, is deacy.

b

step-by-step explanation: