Question

Don opened a checking account. Let F represent the

amount of money in the account after m months. The
situation can be represented by F(m) = -50m + 300
22. What is the rate of change and what does it mean in the
context of the problem?
Select all that apply:
A. Rate of change is 50.
B. Rate of change is -50.
C. Rate of change is 300.
D. The amount of money increases every month.
E. The amount of money decreases every month.
F. The initial amount of money.

Answer 1

B and E

Explanation:

In the function f(m)= -50m+300

-50 is the gradient meaning it is the rate of change per month. This means that the rate of change is -50 since this is the coefficient of m.

Also, -50m must be negative since m represents a month and you cant have negative months, so you know that the amount of money is decreasing