A motorcycle daredevil is planning a stunt to perform at a county fair. A ramp must be built to give him a 20%
grade, or slope. If the vertical height at the end of the ramp must be 19 ft to assure that the stunt is a success,
what must be the length of the horizontal run?
19

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.