A class is taking a field trip to the Science Center charges a flat fee for the entire class plus an additional amount per student if you a special exhibit at this graph represents y the total cost in dollars for X students which functions models the relationship between X and Y A y=50x B y=2x+50 C y=50x+2 D y=50-2x ​

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.