Question

Kylie starts with $145 in her piggy bank. Each month she adds $20. Write the recursive function rule that models the total amount in Kylie’s piggy bank at the end of each month?

Answer 1

an=20+an−1​ and a1=145. i took the test, that is what it said the answer is!

Answer 2

She adds 20 USD each month to her account, starting with 145 USD. Therefore, the function that best models the total amount of She is a linear function that can be written like f(p) = 20p + 145. Where p is the number of months. (p > 0). For the first month f (1) = 20 (1) + 145 = 165 USD. For the second month f (2) = 20 (2) + 145 = 185 USD..