A lawn-mowing company is trying to grow its business. It had 18 clients when they started its business and wants to increase by 4 new clients each week. Use an arithmetic sequence to write a function to represent this real-world situation and determine the range of the function for the first four weeks of data. f(x) = 4x + 14; 0 ≤ y ≤ 4 f(x) = 4x + 18; 0 ≤ y ≤ 4 f(x) = 4x + 18; 18 ≤ y ≤ 30 f(x) = 4x + 14; 18 ≤ y ≤ 30