You do 9x27=243 then take 2x31=62 add 243+62=305 then take 305 and subtract it from 28 305-28=277
so if i did it right you should get n=277
i'm pretty sure the slope is zero ...
ANSWER
a.
The name of the vector is vector

b.

EXPLANATION
a.The initial point is G and the terminal point of the vector is H.
The name of the vector is vector GH.
b.
Count the number of components in the positive direction of the x-axis.
This will give the x-component.
Count also the number of boxes along the negative direction of the y-axis.
This will give the y- component of the vector.
The components of the vector are
