Using the Quadratic Formula

Flashcard
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Quadratic Formula?
Back
The Quadratic Formula is x = (-b ± √(b² - 4ac)) / (2a), used to find the roots of a quadratic equation ax² + bx + c = 0.
Tags
CCSS.HSA-REI.B.4B
2.
FLASHCARD QUESTION
Front
What does it mean to 'complete the square'?
Back
Completing the square is a method used to convert a quadratic equation into a perfect square trinomial, making it easier to solve.
Tags
CCSS.HSA-REI.B.4B
3.
FLASHCARD QUESTION
Front
How do you identify A, B, and C in a quadratic equation?
Back
In the standard form of a quadratic equation ax² + bx + c = 0, A is the coefficient of x², B is the coefficient of x, and C is the constant term.
4.
FLASHCARD QUESTION
Front
What is the discriminant in the context of the Quadratic Formula?
Back
The discriminant is the part of the Quadratic Formula under the square root, b² - 4ac, which determines the nature of the roots.
Tags
CCSS.HSA-REI.B.4B
5.
FLASHCARD QUESTION
Front
What does a positive discriminant indicate about the roots of a quadratic equation?
Back
A positive discriminant indicates that the quadratic equation has two distinct real roots.
Tags
CCSS.HSA-REI.B.4B
6.
FLASHCARD QUESTION
Front
What does a zero discriminant indicate about the roots of a quadratic equation?
Back
A zero discriminant indicates that the quadratic equation has exactly one real root (a repeated root).
Tags
CCSS.HSA-REI.B.4B
7.
FLASHCARD QUESTION
Front
What does a negative discriminant indicate about the roots of a quadratic equation?
Back
A negative discriminant indicates that the quadratic equation has no real roots, but two complex roots.
Tags
CCSS.HSA-REI.B.4B
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