Discriminant
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the discriminant in a quadratic equation?
Back
The discriminant is the expression b² - 4ac in the quadratic formula, which determines the nature of the roots of the equation.
Tags
CCSS.HSA-REI.B.4B
2.
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
3.
FLASHCARD QUESTION
Front
What does a discriminant of zero indicate about the roots of a quadratic equation?
Back
A discriminant of zero indicates that the quadratic equation has exactly one real repeated root.
Tags
CCSS.HSA-REI.B.4B
4.
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 two complex (imaginary) roots.
Tags
CCSS.HSA-REI.B.4B
5.
FLASHCARD QUESTION
Front
Calculate the discriminant for the quadratic equation x² + 7x + 13.
Back
The discriminant is -3, indicating 2 imaginary roots.
Tags
CCSS.HSA-REI.B.4B
6.
FLASHCARD QUESTION
Front
In the quadratic equation y = ax² + bx + c, what do a, b, and c represent?
Back
a is the leading coefficient, b is the coefficient of x, and c is the constant term.
7.
FLASHCARD QUESTION
Front
True or False: The quadratic formula can be used to solve any quadratic equation, regardless of whether it can be factored.
Back
True.
Tags
CCSS.HSA-REI.B.4B
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