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For what value of k are (k, 2 2), (-k + ...

For what value of k are (k, 2 2), (-k + 1, 2k), and (4-k, 6-2k) collinear?

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The correct Answer is:
k = 1/2
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ZEN PUBLICATION-CO-ORDINATE GEOMETRY-ZEN ADDITIONAL QUESTIONS - SHORT ANSWER [SA] TYPE QUESTIONS
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