Question

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

exponential growth function
exponential growth function

exponential decay function
exponential decay function

linear function
linear function

quadratic function

Answer 1

exponential decay function

Reason: the amount multiplies by 1/2 every 50 years (half-life), which is modeled by an exponential function with base less than 1.