Answer
2018
Work Step by Step
We set f(x) equal to 10,000 dollars to find when the costs will exceed that amount. $10,000 = 318x+4467$ $10,000-4467 = 318x$ Now, we use PEMDAS, a method for simplification. This acronym reminds us that we must first address parentheses, and then exponents. Next, we address multiplication and division, going from left to right. Lastly, we simplify addition and subtraction from left to right. This gives: $x=18$
