I got (0, 8, 5). Is that the only answer?

Question

557.Let A = (1,2,3), B = (3,7,9), and D = (−2,3,−1). Find coordinates for vertex C of parallelogram ABCD. How many parallelograms can you find that have the three given vertices among their four vertices?

Answer 1

Because you are given coordinates for points A,B,D and the parallelogram is specified as ABCD there is only one possibility for the coordinates of C (and you have determined those coordinates correctly).

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