Question

if the points A(-2,-1), B(1,0), C(x,3) and D(1,y) are the vertices of the parallelogram,find the value of x and y.

Answer 1

let O is the point where diagonals intersect and bisect each other.
Therefore, mid point of AC and BD is the same coordinate.
Applying midpoint formula in both diagonals,

(-2 + x)/2 = (1 + 1)/2
-2+x = 2
x = 2+2
x = 4

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Answer 2

Answer:

I hope you have help x= 5