Does the relation s={(5.2). (3.2), (4,2)? state the domain and range

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.

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Find the distance between (7,-6) and (-3,-9)