100 points! i need the answers to these 20 questions. don’t comment unless if you can help or else you’ll be reported

9. slope= 1
y-intercept= -3
10. slope= 2
y-intercept= 10
11. slope= -2
y-intercept= -4
12. slope= -1
y-intercept= 1
13. slope= 1
y-intercept= 2
14. slope= 3
y-intercept= -6
15. slope= 1
y-intercept= -5
16. slope= -3
y-intercept= 3
17. slope= -1
y-intercept= -1
18. slope= 2
y-intercept= -1/2
19. slope= 1/2
y-intercept= 1
20. slope= -1/2
y-intercept= 3/2