Question

Drill: What are the a and b' values for this function? Circle One 1. y = (4*) A: B: Growth or decay? 2. y = -2* A: B: Growth or decay? 3. y = A: B: Growth or decay? What are the key features to identifying decay vs growth?

Answer 1

Let's begin by listing out the information given to us:

The general formula for growth or decay is given by:

y = ab^x

For growth: b = 1 + r

For decay: b = 1 - r

1.

y = ⅓(4^x)

When we compare this equation with the general formula, we will see that

The feature that distinguishes the growth from decay is the value of b, whether it is 1 + r for growth or 1 - r for decay