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24 September, 02:25

Find the maximum/minimum value of the quadratic function x2 + 10x + 17 = y by

completing the square method.

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Answers (1)
  1. 24 September, 02:42
    0
    -8

    Step-by-step explanation:

    y = x² + 10x + 17

    Complete the square. (10/2) ² = 25

    y = x² + 10x + 25 - 8

    y = (x + 5) ² - 8

    This is an upward parabola with a vertex at (-5, - 8). So the minimum is y = - 8.
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