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If point A is (4, -1) and point B is (3, 5), what is the square of the distance AB between them?

A. 15
B. 37
C. 121
D. 169
Correct Answer: B. 37

To find the square of the distance between two points A(x1, y1) and B(x2, y2), we use the distance formula squared: d2 = (x2 - x1)2 + (y2 - y1)2. For points A(4, -1) and B(3, 5):

  • (3 - 4)2 = (-1)2 = 1
  • (5 - (-1))2 = (5 + 1)2 = 62 = 36

Adding these values gives 1 + 36 = 37. Options A, C, and D are incorrect calculations, likely resulting from errors in applying the formula or arithmetic mistakes.

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