If by next to you mean across from, it could be a parallelogram.
What you have to do is add up the amount of total grade scores. 76+99+86+x. You get 261+x. you have to get 99% or higher
1. 15/3:3/3
2. 5:1
1. find the same denominator
2. divide by denominator
First find out the function for the given table.
Find the slope.
m= (y2-y1)/(x2-x1)
m=(-1-(-3)) / (-1-(-2))
m=(-1+3) / (-1+2)
m=2/1
m=2
Now equation of line:
y-y1=m(x-x1)
y-(-3)=2(x-(-2))
y+3=2(x+2)
y+3=2x+4
y=2x+1
Now plot these points on the graph, we get the attached graph.