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1 December, 00:33

Find the x and y intercepts of the quadratic equation

f (x) = - x^2+4x-4

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  1. 1 December, 00:49
    0
    X - Intercept

    f (x) = - x² + 4x - 4

    0 = - x² + 4x - 4

    x = - (4) + / - √ ((4) ² - 4 (-1) (-4))

    2 (-1)

    x = - 4 + / - √ (16 - 16)

    -2

    x = - 4 + / - √ (0)

    -2

    x = - 4 + / - 0

    -2

    x = - 4 + 0 x = - 4 - 0

    -2 - 2

    x = - 4 x = - 4

    -2 - 2

    x = 2 x = 2

    The solution to the problem is {2, 2}, or {2}. The x - intercept of the problem is (2, 0).

    Y - Intercept

    f (x) = - x² + 4x - 4

    f (x) = - (0) ² + 4 (0) - 4

    f (x) = - (0) + 0 - 4

    f (x) = - 0 + 0 - 4

    f (x) = 0 - 4

    f (x) = - 4

    The y - intercept of the problem is (0, - 4).
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