In Problems 13–24, analyze each equation and graph it. 1 3 8. 10 13. r = 14. r = 15. r = 16. r = 1 + cos 0 1 - sin 0 4 + 3 sin 6 5 + 4 cos 0 9 12 8 8 17. r = 18. r = 19. r = 20. r = 3 - 6 cos 0 4 + 8 sin 0 2 - sin 0 2 + 4 cos 0 3 csc e csc 8 - 1 6 sec 0 21. r(3 - 2 sin 0) = 6 22. r(2 - cos 0) = 2 23. r = 24. r = 2 sec 0 - 1

Use the data given in the three scenarios below to produce scatter plots, determine the type of model demonstrated in each example and then answer the questions based on the graph you created. Scenario 1 Rescue 911 In a rural community, fire and paramedic crews must service a large region. They often cover 2 or 3 towns several kilometres apart. These crews travel, on average, 70 km/h to their destination. The Chief of Station 42 wants to determine the time required to reach the patient's home (response time) for his region. The station is located next to the local hospital. The Chief knows the distances to each community that he services, including Deerborn, the furthest community, at 55 km away. Using the data below, create a scatter plot showing the relationship between distance to patient and response time. Distance to Patient (km) Response Time (minutes) 10 8.6 15 12.9 40 34.3 50 42.9 55 47.1

Number 12 Step to step

2. Z.2-x-J Find level furface and plot graph.