Discriminant
9th Grade
•15 Qs
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Discriminant
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
Enhance your content in a minute
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the discriminant and how many solutions would this quadratic have? 4x2 + 6x - 4 = 0
-28, No Solutions
28, 2 Solutions
100, 2 Solutions
-100, No Solutions
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the discriminant of this equation? 3x2 + 8x = 0
64
52
9
0
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the discriminant and how many solutions would this quadratic have?
0, No Solutions
0, 1 Solution
128, 2 Solutions
128, 1 Solution
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
The discriminant is
aX2 + bX + c
b - 4ac
b2 - 4ac
b2 + 4ac
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
1 min • 12 pts
Determine the value of the discriminant and name the nature of the roots for the following:
x2 + 7x + 13
Remember: b2 - 4ac
400, 2 real root
0, 1 real root with a multiplicity of 2
-400, 2 imaginary roots
-3, 2 imaginary roots
Tags
CCSS.HSA-REI.B.4B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A function has a discriminant of -3.
______________
How many x-intercepts does it have?
0
1
2
3
Tags
CCSS.HSA-REI.B.4B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For the function below, is the discriminant positive, negative, or zero?
___________
y = x² + 4x + 4
Positive
Negative
Zero
Not Sure
Tags
CCSS.HSA-REI.B.4B
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