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    parabola open upward or downward

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    Solve the 2 problems. Show your work.
    1. y = x ^2 - 4x -12
    a) What is the vertex?
    b) What are the intercepts?
    c) Does the parabola open upward or downward?

    2. y = -x^2 + 2x +3
    a) What is the vertex?
    b) What are the intercepts?
    c) Does the parabola open upward or downward?

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    https://brainmass.com/math/algebra/parabola-open-upward-downward-262421

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    Solve the 2 problems. Show your work.
    1. y = x ^2 - 4x -12
    a) What is the vertex?
    Vertex will be at x = -b/2a = -(-4)/2 = 2
    y = 2^2 - 4*2 - 12 = 4 - 8 - 12 = -16
    vertex = (2, -16)

    b) What are the intercepts?
    X -intercept
    Put y = 0
    x ^2 ...

    Solution Summary

    The parabola as open upward or downward is discussed.

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