Answer:
Step-by-step explanation:
3) m=(y2-y1)/(x2-x1)
m=(-3-(-15))/(-4-11)
m=(-3+15)/-15
m=12/-15
simplify
m=-4/5
Answer: -4/5
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5) m=(y2-y1)/(x2-x1)
m=(12-(-11))/(15-12)
m=(12+11)/3
m=23/3
Answer: 23/3
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