Final answer:
The linear equation P = 40 + 22t represents a situation where there is a constant rate of change over time.
Step-by-step explanation:
The linear equation given is P = 40 + 22t. In this equation, P represents a certain quantity or value, while t represents time. The equation shows a relationship between P and t, where P increases by 22 units for every unit increase in t.
For example, if we plug in t = 1, the equation becomes P = 40 + 22(1) = 62. So, when t = 1, the value of P is 62. Similarly, if we plug in t = 2, P = 40 + 22(2) = 84, and so on.
This equation can be used to describe situations where there is a constant rate of change over time, such as the increase in the population of a city or the growth of a plant.