Answer:
Step-by-step explanation: So all you do is set up a formula. I use y2 -y1 over x2-x1 do it would be a fraction and plug in the points so 6-(-8) over -9 - 7 and the that is your slope. Then get the equation y=mx+b plug in your slope in the m and then solve!
Answer:
The third one
Step-by-step explanation:
I hope I've helped you.
Answer:
3
-1/3
Step-by-step explanation:
up 3 right 1
down 1 right 3
20/50=2/5=0.4=40%
So yeah, 2/5 or 0.40 or 40%
They're all equal.
Hope this helps.