Algebra 1 · Exponential Functions & Data
Exponential Decay
Algebra 1 · Exponential Functions & Data
Definition
Exponential decay is repeated multiplication by a factor between 0 and 1, producing a falling curve.
Examples
- y = 100(0.85)^x decays 15% each step.
- A car losing value each year shows exponential decay.
Key rule
A base between 0 and 1 makes the curve fall.
Memory hook
Decay = shrinking by a factor under 1.