18. Stella takes tourists on short rides in Central Park in her Bicycle Limo. She wants to decide how much she should charge for her Bicycle Lima rides. So Stella tries charging different prices. Based on some calculations, she creates the function below to represent the number she charges. of customers she can expect on a typical day based on the price that 1 =-2x +70 the price in tdollars that shecharges For I ride In the function that Stella created, x represents the price (in dollars) that she charges for a ride, and y represents the number of customers she can expect in a day at that price. Using the same function and its context (involving Stella's Bicycle Limo rides), describe the meaning of the numbers X - 2(25) + 70 shown in the table at the right. (1 point) 25 20 - 50t70 ( 20 10 30. Write an equation for a vertical line that passes through the point (7, -2). (1 point) 31. Determine a linear function equation for the table of values shown. (1 point) X 2 1 3 -1 4 -3 5 -5 6 -7