### Home > CALC > Chapter 7 > Lesson 7.3.2 > Problem 7-121

7-121.

Which of the following differential equations could model a population whose rate of change is proportional to the existing population? Explain your reasoning. Is it possible that there is more than one answer? Homework Help ✎

= 3 *P*= 3 *t*= −3 *P*= 3

A proportional situation follows the patten: *y* = *kx*.