The value, V (m), of a comic book m months after publication has a average rate of change of - 0.04 between m = 36 and m = 60. Which statement must be true?

The value of the comic book decreased by an average of $0.04 each month between m = 36 and m = 60 ...

Step-by-step explanation:

The complete question is:

The value, V (m), of a comic book m months after publication has a average rate of change of - 0.04 between m = 36 and m = 60. Which statement must be true? The value of the comic book decreased by a total of $0.04 between m = 36 and m = 60. The value of the comic book increased by a total of $0.04 between m = 36 and m = 60. The value of the comic book decreased by an average of $0.04 each month between m = 36 and m = 60. The value of the comic book increased by an average of $0.04 each month between m = 36 and m = 60.

Solution:

The average rate of change of - 0.04

The negative sign with the value shows that the value is decreasing over time.

Rate is the change per unit time.

The average rate of change can be found by:

The average rate of change = Total change in value / Change in time

So according to this the correct statement is:

The value of the comic book decreased by an average of $0.04 each month between m = 36 and m = 60 ...

Answer is C