Question

ashish wrote n points in the plane with integer coordinates, randomly, such that there exists a pair of points whose midpoint also has integer coordinates. What is the maximum value of n that ensures at least two of the points have a midpoint with integer coordinates?
A. 1
B. 0
C. 5
D.4 ​

Answer 1

Answer:

D 4

Step-by-step explanation:

because 4 has two midpoints 2 and 1