Is the following table of values an example of exponential decay?
x |
y |
-2 |
20 |
-1 |
10 |
0 |
5 |
1 |
2.5 |
2 |
1.25 |
The exponetial fuctions are of the form y = a × b^{x,}
When a > 0 and 0 < b < 1
Each time x is increased by 1, y decreases by a multiple of any number.
This table is an example of exponential decay because as the x value increases by 1, the y value decreases to one half of its previous value.