Question

A radioactive substance loses half its amount every 50 years. Which type of function best models this scenario?(1 point)

exponential decay function

linear function

quadratic function

exponential growth function

Answer 1

Exponential decay function.

Reason: the amount decreases by a constant factor (half) every 50 years, e.g. A(t) = A0*(1/2)^(t/50), which is exponential decay.