Part i


Substituting,

Answer: -1
Part ii
I'm not sure that one's typed in correctly but I'll solve it as written.



We're not asked to simplify it so I wont. Substituting,

Answer: 59/306
Answer:
12
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
M = y2-y1 / x2-x1
= 2-1 / 1-2
= 1 / -1
= -1
Answer:She placed the decimal point incorrectly when dividing. i took the test