Question

The table shows the linear relationship between the balance of a student's savings account and the number of weeks he has been saving Savings Account Week 0 1 13 Balance (dollars) 123 Based on the table, what was the rate of change of the balance of the student savings account in dollars and cents per week?

Answer 1

7 dollars per week

Step-by-step explanation:

Rate of change = change in balance (dollars)/change in weeks

for (0, 32) and (1, 39)

Rate of change = (39 - 32)/(1 - 0)

Rate of change = 7/1 = 7

For (1, 39) and (3, 53)

Rate of change = (53 - 39)/(3 - 1)

Rate of change = 14/2

Rate of change = 7

Since the rate of change is constant from calculation, then the rate of change of the balance of the student savings account in dollars and cents per week is 7 dollars per week