Compound interest 8RA K
OOOX
Compound interest
1 If £500 is invested for 3 years at a rate of compound interest of 4% per
annum, how much will be in the account after 3 years?
£562.43
in his
2. Dave invests £3000 at a rate of interest of 6% a year. How much
account after 5 years?
3. Glenn invests £7000 at a rate of interest of 2% for 4 years.
a. What is the total in his account after the 4 years?​

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).