InterviewSolution
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InterviewSolution
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The distance between the points (k,-5) and (2,7) is 13 units. find the value of k. |
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Answer» A = (k, -5) B = (2, 7) Distance = 13 units Distance between A and B = √(x1 - x2)2 + (y1 - y2)2 13 = √(k - 2)2 + (-5 - 7)2 132 = (k - 2)2 + (-12)2 169 = (k - 2)2 + 144 169 - 144 = (k - 2)2 25 = (k - 2)2 √25 = k - 2 5 = k - 2 k = 5 + 2 k = 7 |
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