Question

Given A(9, 11), B(3, -4), C(6, 9), and D(-7, -7), then the midpoint of which line is located in Quadrant III?

AB

BC

CD

BD

If A(5, 5), B(3, 3), C(6, 8), and D(-3, 4), then which segment is the longest?

AB

BC

CD

BD

Answer 1

@Michele_Laino

Answer 2

mid point of AB is:
\[(\frac{ 9+3 }{ 2 },\frac{ 11-4 }{ 2 })=(6,7/2)\]
mid point of CD, is:

Answer 3

\[\left( \frac{ 6-7 }{ 2 } ,\frac{ 9-7 }{ 2 }\right)=(-1/2,1)\]