Answer:
Step-by-step explanation:
x1=9 x2=8 y1=12 y2=11
=x2-x1
y2-y1
=8-91
1-12
=-1
-1
magintude =[tex]\sqrt{(xcomp)^2+(y comp)^2[/tex]
=[tex]\sqrt{(-1)^2+(-1)^2[/tex]
=[tex]\sqrt{1+1[/tex]
=[tex]\sqrt{2[/tex]
direction=y component/x component
tan=-1/-1
tan=1
[tex]tan^{-1}[/tex] 1=45
=45 degree
both x component and y component are negative so it lies on third quadrant.