Context Of Juan

Question

Juan has $13 dollars in his piggy bank. Each week on Monday, he gets $10 for his allowance. What does f(7) represent in the context?

Answer 1

Let w be the number of weeks that Juan has been saving money. Assuming that Juan puts all of his allowance into his piggy bank and that f(w) is the amount of money that Juan has after w weeks, then:

f(w) = $13 + $10w

w is the number of weeks, so f(7) is the amount of money that Juan has after 7 weeks. To figure out how much that is, set w = 7 in the f(w) equation and compute the answer.