The price of a community pool membership has a one-time sign-up fee and a monthly fee. the price can be modeled by the function y = 20x + 50, where x is the number of months. what is the slope, and what does it represent? (1 point) 1. 20; it represents the monthly fee 2. 20; it represents the one-time sign-up fee 3.50; it represents the monthly fee 4. 50; it represents the one-time sign-up fee