The discriminant of a quadratic equation and interpreting its meaning.
Practice finding the discriminant of a quadratic equation and interpreting its meaning.
Instructions:
Identify the coefficients: Determine the values of a, b, and c in the given quadratic equation (ax² + bx + c = 0).
Calculate the discriminant: Use the formula: D = b² - 4ac
Interpret the discriminant:
D < 0: No real solutions.
D = 0: One real solution (a double root).
D > 0: Two real solutions.
Hints:
Remember to follow the order of operations (PEMDAS) when calculating the discriminant.
The discriminant tells you about the nature of the solutions, not the actual solutions themselves.
Practice with different quadratic equations to get comfortable with calculating and interpreting the discriminant.
If the constant term (c) is not explicitly given, it is zero.
If the middle term (bx) is missing, it is zero.
Instructions:
Identify the coefficients: Determine the values of a, b, and c in the given quadratic equation (ax² + bx + c = 0).
Calculate the discriminant: Use the formula: D = b² - 4ac
Interpret the discriminant:
D < 0: No real solutions.
D = 0: One real solution (a double root).
D > 0: Two real solutions.
Hints:
Remember to follow the order of operations (PEMDAS) when calculating the discriminant.
The discriminant tells you about the nature of the solutions, not the actual solutions themselves.
Practice with different quadratic equations to get comfortable with calculating and interpreting the discriminant.
If the constant term (c) is not explicitly given, it is zero.
If the middle term (bx) is missing, it is zero.
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Âge recommandé: 9 ans
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