Let n be the amount of points earned in round 5
the goal of the game is to get zero when you add up the point value from all the rounds.
this means
-9 +3 + (-8)+ 2 +n =0
add up all the given numbers, then see which number(n) is required in order to get zero
any questions?
Many typos.
The answer to your question is 6.
75/5=15
90/15=6
Its a because you have to do the change in y over the change in x which is
y2-y1
------
x2-x1
Janna behanihe invented it