Discriminant

Flashcard
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Quizizz Content
FREE Resource
Student preview

15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is the discriminant in a quadratic equation?
Back
The discriminant is a value calculated from the coefficients of a quadratic equation in the form ax² + bx + c, given by the formula D = b² - 4ac.
Tags
CCSS.HSA-REI.B.4B
2.
FLASHCARD QUESTION
Front
What does a positive discriminant indicate?
Back
A positive discriminant indicates that the quadratic equation has two distinct real solutions.
Tags
CCSS.HSA-REI.B.4B
3.
FLASHCARD QUESTION
Front
What does a negative discriminant indicate?
Back
A negative discriminant indicates that the quadratic equation has no real solutions, only complex (imaginary) solutions.
Tags
CCSS.HSA-REI.B.4B
4.
FLASHCARD QUESTION
Front
What does a discriminant of zero indicate?
Back
A discriminant of zero indicates that the quadratic equation has exactly one real solution (a repeated root).
Tags
CCSS.HSA-REI.B.4B
5.
FLASHCARD QUESTION
Front
Calculate the discriminant for the equation 3x² + 6x + 2 = 0.
Back
D = 6² - 4(3)(2) = 36 - 24 = 12 (positive, two real solutions).
Tags
CCSS.HSA-REI.B.4B
6.
FLASHCARD QUESTION
Front
Calculate the discriminant for the equation x² - 4x + 4 = 0.
Back
D = (-4)² - 4(1)(4) = 16 - 16 = 0 (one real solution).
Tags
CCSS.HSA-REI.B.4B
7.
FLASHCARD QUESTION
Front
Calculate the discriminant for the equation 2x² + 3x + 5 = 0.
Back
D = 3² - 4(2)(5) = 9 - 40 = -31 (negative, no real solutions).
Tags
CCSS.HSA-REI.B.4B
Create a free account and access millions of resources
Similar Resources on Quizizz
15 questions
Discriminant & Quadratic Formula

Flashcard
•
9th Grade
14 questions
2-6 The Discriminant

Flashcard
•
9th Grade
14 questions
Solving quadratic Equations by completing the Squares

Flashcard
•
9th Grade
14 questions
Quadratic Formula & Discriminant

Flashcard
•
9th Grade
14 questions
12-03 Solve Quadratic Equations by Factoring

Flashcard
•
9th Grade
15 questions
The Discriminant

Flashcard
•
9th Grade
15 questions
Quadratic Formula and Discriminant

Flashcard
•
9th Grade
15 questions
The Discriminant

Flashcard
•
9th Grade
Popular Resources on Quizizz
15 questions
Multiplication Facts

Quiz
•
4th Grade
25 questions
SS Combined Advisory Quiz

Quiz
•
6th - 8th Grade
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
40 questions
SOL: ILE DNA Tech, Gen, Evol 2025

Quiz
•
9th - 12th Grade
20 questions
NC Universities (R2H)

Quiz
•
9th - 12th Grade
15 questions
June Review Quiz

Quiz
•
Professional Development
20 questions
Congruent and Similar Triangles

Quiz
•
8th Grade
25 questions
Triangle Inequalities

Quiz
•
10th - 12th Grade
Discover more resources for Mathematics
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
10 questions
Exponential Growth and Decay Word Problems

Quiz
•
9th Grade
45 questions
Week 3.5 Review: Set 1

Quiz
•
9th - 12th Grade
17 questions
High School Survival Guide

Lesson
•
9th - 12th Grade
15 questions
Factoring Quadratics

Quiz
•
9th Grade