5. (0,1)
6. (-2,-2)
7. (-1,-3)
8. (-3, 2)
Answer:
"85.7%" is the right answer.
Step-by-step explanation:
According to the question,
The total capacity of water tank will be:
⇒ 
The total volume of water will be:
⇒ 
Now,
The percentage of total capacity will be:
= 
= 
By putting the values, we get
= 
=
%
Continue the slop until it hits the y axis and that point will be your y intercept