Question

Kylie sells 2 concert tickets every minute. She has already sold 8 tickets. If f(t) represents the total number of tickets that Kylie will sell in t minutes, which of the following functions represents the relationship between f(t) and t? f(t) = 8t − 2 f(t) = 2t − 8 f(t) = 2t + 8 f(t) = 8t + 2

Answer 1

The answer is c: f(t)=2t+8

Explanation:

This is answer because it is

Answer 2

f(t) = 2t + 8
If t stands for the number of minutes she has been selling tickets, then we know that we must have 2t in the equation since she sells 2 tickets per minute. And since the only two left are either f(t) = 2t - 8 or f(t) = 2t + 8, the answer must be
f(t) = 2t + 8 because she is 8 tickets, not -8.