Which of the following scenarios can be modeled by an exponential function?(1 point)

Responses

the amount of a radioactive isotope that decays by 10 grams every hour
the amount of a radioactive isotope that decays by 10 grams every hour

the height of a ball thrown upwards
the height of a ball thrown upwards

the amount of money in an account that has withdrawals of $35 each month
the amount of money in an account that has withdrawals of $35 each month

the amount of a radioactive isotope that decays by one-half every 7 years

1 answer

The scenario that can be modeled by an exponential function is:

the amount of a radioactive isotope that decays by one-half every 7 years.

This scenario describes exponential decay, where the quantity decreases by a constant proportion (in this case, half) over a fixed period of time. In contrast, the other scenarios involve linear decay or motion and do not represent exponential functions.