Question

The expression -50x + 100 represents the balance, in dollars, of the bank account after x months.

Answer 1

The rate of change is -50 based on the information given.

You would have to substitute the amount of months into the equation for x to properly determine the average rate of change, which is not posted in this question.

Answer 2

Answer:

$-50$

Step-by-step explanation:

In the $1\text{st}$ month the balance will be $-50(1) +100$ which is $50$. In the $2\text{nd}$ month, the balance will be $-50(2) +100$ which is $0$. In the $3\text{rd}$ month, the balance will be $-50(3) +100$ which is $-50$.

We can see that for every increase of $1$ month, the balance of the bank account will decrease by $50$.