Answer:
The slope is 1/2
Step-by-step explanation:
To find the slope
m= (y2-y1)/(x2-x1)
= (8-2)/(5--7)
= (8-2)/(5+7)
= 6/12
= 1/2
It is D i believe because the formula for finding momentum is momentum= mass times velocity
About 190% because its almost two times the original number
I hope that answers your question