
Imaginary Numbers and Quadratic Equations

Interactive Video
•
Mathematics
•
8th - 12th Grade
•
Medium
Standards-aligned

Jackson Turner
Used 5+ times
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of the imaginary unit 'i'?
The square root of 0
The square root of 2
The square root of 1
The square root of -1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When simplifying the square root of a negative number, which component represents the imaginary part?
The square root of the positive factor
The square root of the negative factor
The square root of the whole number
The square root of zero
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving x^2 - 49 = 0 using the square root property?
Subtract 49 from both sides
Add 49 to both sides
Divide both sides by 49
Multiply both sides by 49
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to consider both positive and negative roots when solving quadratic equations?
Because it makes the equation easier to solve
Because it simplifies the equation
Because it ensures all possible solutions are found
Because it provides more solutions
Tags
CCSS.HSA-REI.B.4B
CCSS.HSN.CN.C.7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the solutions for x^2 = -16?
4i and -4i
16 and -16
4 and -4
8i and -8i
Tags
CCSS.8.EE.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you verify that 4i is a solution to x^2 = -16?
By substituting 4i into the equation and checking if both sides are equal
By adding 4i to both sides of the equation
By multiplying 4i by the equation
By dividing the equation by 4i
Tags
CCSS.HSA-REI.B.4B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving x^2 + 50 = 0?
Add 50 to both sides
Subtract 50 from both sides
Multiply both sides by 50
Divide both sides by 50
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