Quadratic Formula with Complex Roots
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
Standards-aligned
Anthony Clark
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How does the quadratic equation show that there should be two complex solutions?
b2
±
b2 - 4ac
2a
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is this formula?
This is the speed of light formula.
This is the quadratic formula.
This is the zero product property.
This is scary.
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by taking square roots:
k2 - 6 = -50
k = ±4i√11
k = ±4√11
k = ±2i√11
k = ±2√11
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by taking square roots.
x2 = -121
± 11
± 11i
± 12
11i
Tags
CCSS.HSA-REI.B.4B
6.
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
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve for x:
x = {-4, -1}
x = {-1, -4}
x = {2+i, 2-i}
x = {-2+i, -2-i}
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
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