Can someone help me I don't understand it I was absent on the day they put the answers

Answer:
See below.
Step-by-step explanation:
Top line
1. slope = -1/3
2. slope = 3/1 = 3
3. slope = 3/-2
Bottom line
4. slope = 3/2
5. slope = 7/3
6. slope = 6/(-2) = -3