## Algebra 1

Decay Factor: 0.5 The equation will look like this: f(x) = 128(0.5)$^{x}$ Now, plug in 5 (rounds) for x: f(x) = 128(0.5)$^{x}$ f(5) = 128(0.5)$^{5}$ f(5) = 128(0.03125) f(5) = 4