Create an equation where x represents the number of weeks and y represents the number of dog walks.
Week 1 - 4 walks
Week 2- 8 walks
Week 3 - 8 walks
Week 4 - 10 walks
Week 5 - 13 walks
Week 6 - 13 walks
Week 7 - 13 walks
Week 8 - 17 walks
Week 9 - 16 walks
Week 10 - 17 walks.