Quadratic formula and discriminant
8th Grade
•20 Qs
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Quadratic formula and discriminant
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Medium
+1
Standards-aligned
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Solutions of a quadratic equation are also called
roots
x-intercepts
zeros
All of the above
Tags
CCSS.HSA.APR.B.3
CCSS.HSA.REI.B.4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a = 2 , b = 3, c = -5
a = 2, b = -3, c = 5
a = 2, b = -3, c = -5
a = -2, b = 3, c = 5
Tags
CCSS.HSA.REI.B.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the quadratic formula?
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What does the discriminant tell us about a quadratic function?
The maximum or minimum value
The y-intercept
The number and type of solutions
The axis of symmetry
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the formula for the discriminant of a quadrartic equation?
Tags
CCSS.HSA-REI.B.4B
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
If the discriminant is equal to -2, how many real solutions are there?
None
One
Two
Infinite
Tags
CCSS.HSA-REI.B.4B
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If the discriminant of the quadratic equation is equal to 4, how many real solutions are there?
None
One
Two
Infinite
Tags
CCSS.HSA-REI.B.4B
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