Discriminant
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for the discriminant of a quadratic equation?
Back
The discriminant is given by the formula b² - 4ac.
Tags
CCSS.HSA-REI.B.4B
2.
FLASHCARD QUESTION
Front
How do you find the zeros of a quadratic equation in factored form?
Back
Set each factor equal to zero and solve for x.
3.
FLASHCARD QUESTION
Front
What are the zeros of the equation (x+10)(x-2) = 0?
Back
The zeros are -10 and 2.
4.
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
5.
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 (the roots are complex).
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
Calculate the discriminant for the quadratic equation 6x² − 2x − 3 = 0.
Back
The discriminant is 76.
Tags
CCSS.HSA-REI.B.4B
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