
Interpret the Discriminant
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the discriminant is POSITIVE, the equation will have...
2 real solutions
1 real solution
No real solutions
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the discriminant is NEGATIVE, the equation will have...
2 real solutions
1 real solution
No real solutions
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the discriminant is ZERO, the equation will have...
2 real solutions
1 real solution
No real solutions
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 • 1 pt
A quadratic has a discriminant of -10. What does that tell you?
This quadratic has no real solutions and never crosses the x-axis.
This quadratic has a solution of -10.
This quadratic has two real solutions and will cross the x-axis twice.
This quadratic has one real solution.
Tags
CCSS.HSA-REI.B.4B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does the discriminant tell us?
The maximum or minimum
The y-intercept
The number and type of solutions
The axis of symmetry
Tags
CCSS.HSA-REI.B.4B
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When does a quadratic equation have complex solutions?
When the discriminant is positive.
When the quadratic equation has only one solution.
When the discriminant is zero.
When the discriminant is negative.
Answer explanation
A quadratic equation has complex solutions when the discriminant is negative.
Tags
CCSS.HSA-REI.B.4B
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