Answer:
the situation that can be modeled by an exponential function is:
The number of tadpoles in a pond starts at 240 and triples every hour.
Step by step explanation:
An exponential function is defined as a function with a positive constant other than 1 raised to a variable exponent. It is used to model a relationship in which a constant change in the independent variable gives the same proportional change in the dependent variable.
A linear function is a function that has a constant rate of change.
By this, we can say that situations number 1,2, and 4 are linear functions.
Therefore, the situation that can be modeled by an exponential function is:
The number of tadpoles in a pond starts at 240 and triples every hour.