Graph the equation-y=x+1

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?

Randy and trey take turns cleaning offices on the weekends. it takes randy at most 4 hours to clean the offices. it takes trey at most 6 hours to clean the offices. what is the greatest amount of time it would take them to clean the offices together? 2.4 hours 2.5 hours

Show all work to identify the discontinuity and zero of the function f of x equals 6 x over quantity x squared minus 36