
Exploring the Quadratic Formula and Discriminant

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

Liam Anderson
FREE Resource
Standards-aligned
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving a quadratic equation using the quadratic formula?
Graphing the equation
Converting the equation to standard form
Using a calculator
Finding the roots
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the quadratic formula, what does 'b' represent?
The coefficient of x^2
The constant term
The coefficient of x
The discriminant
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the quadratic formula?
x = (-b ± √(b^2 - 4ac)) / 2a
x = (-b ± √(b^2 + 4ac)) / 2a
x = (b ± √(b^2 - 4ac)) / 2a
x = (-b ± √(b^2 - 4ac)) / a
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the 'plus or minus' (±) in the quadratic formula indicate?
The solution is always negative
The solution is always positive
There are two possible solutions
There is only one solution
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to use a calculator when solving quadratic equations?
To approximate the solutions
To verify the solutions
To graph the solutions
To find the exact solutions
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the discriminant in the quadratic formula?
b^2 - 4ac
b^2 + 4ac
2a
4ac - b^2
Tags
CCSS.HSA-REI.B.4B
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a positive discriminant indicate?
No real solutions
One real solution
Two real solutions
Imaginary solutions
Tags
CCSS.HSA-REI.B.4B
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