If x = -3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the
discriminant of the equation?
The discriminant is negative.
O The discriminant is -3.
O The discriminant is 0.
The discriminant is positive.
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If the discriminant of a quadratic equation equals 0, it means 2 identical real roots existed. (x = -3 is the only x-intercept of the graph of a quadratic equation)
