Question

State the discriminant of 6x^2 – 2x + k, and state for which values of k would result in two different real solutions.
Please explain process.

Answers

  1. The discriminant of the given equation 6x² – 2x + k as required is; 4 – 24k.
    The value of k for which the equation will result in two different real solutions is; k < 1/6.

    What is the discriminant of the given quadratic function?

    Since the discriminant for the standard form quadratic equation; y = ax² + bx +c is given by the formula;
    Discriminant, D = b² – 4ac
    On this note, since; a = 6, b = -2 and c = k.
    Discriminant, D = (-2)² – (4 × 6 × k).
    D = 4 – 24k
    Recall, when discriminant, D > 0; the equation would result in two different real solutions.
    Therefore; 4 – 24k > 0
    -24k > -4
    k < 1 / 6.
    Read more on discriminant;
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