Question

MEDAL! :D

A store had 175 cell phones in the month of January. Every month, 10% of the cell phones were sold and 10 new cell phones were stocked in the store.

Which recursive function best represents the number of cell phones in the store f(n) after n months?

f(n) = 175 - 0.9 • f(n - 1) + 10, f(0) = 175, n > 0

f(n) = 0.1 • f(n - 1) + 10, f(0) = 175, n > 0

f(n) = 175 + 0.9 • f(n - 1) + 10, f(0) = 175, n > 0

f(n) = 0.9 • f(n - 1) + 10, f(0) = 175, n > 0

Answer 1

Hello, @perl I know you've attempted to help me with this problem before, but I still don't understand. :/

Answer 2

no problem

Answer 3

Thank you. :)

Answer 4

hey , i never claimed to be the best teacher ;)

Answer 5

lol :D

Answer 6

what i would do is make a table and then try to predict the pattern

Answer 7

Alright. :)