Question

In February John had $1,000 in his account. In June he has 2,600 what is the rate of change in other words by an average how much per month is John account changing

Answer 1

Explanation:

His account is changing by 400 dollars a month. Because if you subtract 2600 from 1000 you'll get 1600 then divide by the amount of time in this case 4 months and you'll get that it is changing by 400 dollars each month.