Answer:
here (edit I made a mistake)
Step-by-step explanation:
9)
10) y = x - 3
11)
12)
these are the slop int forms, my bad...
sorry
Both side multiply by one number.
Both 15 and 20 can be divided evenly by 5, so 5 is the greatest common monomial: 5(3x^2 + 4x) or 5x(3x + 4)
Answer: (-3,4) and (9,20)
I think these two points will make the answer you have been looking for.