Quadratic Formula with Complex Solutions

Flashcard
•
Mathematics
•
10th - 12th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Quadratic Formula?
Back
The Quadratic Formula is x = (-b ± √(b² - 4ac)) / (2a), used to find the solutions of a quadratic equation ax² + bx + c = 0.
Tags
CCSS.HSA-REI.B.4B
2.
FLASHCARD QUESTION
Front
What does it mean if a quadratic equation has complex solutions?
Back
Complex solutions occur when the discriminant (b² - 4ac) is negative, resulting in solutions that include imaginary numbers.
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
3.
FLASHCARD QUESTION
Front
Solve x² - 5x + 10 = 0.
Back
(5 - i√15)/2 and (5 + i√15)/2.
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
4.
FLASHCARD QUESTION
Front
What is the discriminant in a quadratic equation?
Back
The discriminant is the expression b² - 4ac that determines the nature of the roots of the quadratic equation.
Tags
CCSS.HSA-REI.B.4B
5.
FLASHCARD QUESTION
Front
If the discriminant is positive, how many real solutions does the quadratic have?
Back
Two distinct real solutions.
Tags
CCSS.HSA-REI.B.4B
6.
FLASHCARD QUESTION
Front
If the discriminant is zero, how many real solutions does the quadratic have?
Back
One real solution (a repeated root).
Tags
CCSS.HSA-REI.B.4B
7.
FLASHCARD QUESTION
Front
If the discriminant is negative, how many real solutions does the quadratic have?
Back
No real solutions, but two complex solutions.
Tags
CCSS.HSA-REI.B.4B
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