Quadratic Formula Discriminant and Complex Numbers

If the discriminant is negative, then the quadratic has:

• 1 Real Solution

• 2 Real Solutions

• Half a Solution

• 2 Complex (imaginary) Solutions

Tags

CCSS.HSA-REI.B.4B

Simplify the following radical:

• 
• 
• 
• 

Tags

CCSS.HSN.CN.A.1

Solve the following quadratic equation.

• 
• 
• 
• 

Tags

CCSS.HSA-REI.B.4B

The discriminant is

• aX²  + bX  +  c

• b - 4ac

• b² - 4ac

• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of 2x² − x − 1 = 0 ?

• 7

• -7

• 9

• -9

Tags

CCSS.HSA-REI.B.4B

If the discriminant is POSITIVE, the equation will have...

• 2 real solutions

• 1 real solution

• No real solutions

Tags

CCSS.HSA-REI.B.4B

The formula to determine how many solutions a quadratic equation has is called the discriminant, which is...

• aX² + bX + c

• b - 4ac

• b² - 4ac

• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

find the discriminant of the given equation x²- 6x +9 = 0.

Tags

CCSS.HSA-REI.B.4B

Aria, Elijah, and Daniel are trying to launch a homemade rocket. The height of the rocket, in meters, can be modeled by the quadratic equation -3x² - 5x + 15 = 7. What is the discriminant of this equation and how many solutions would it have?

• 205, 2 Solutions

• -71, No Solutions

• 121, 2 Solutions

• 121, 1 Solution

Tags

CCSS.HSA-REI.B.4B

What is the discriminant in the Quadratic Formula?

• -b + 4ac

• b - 4ac

• -b² - 4ac

• b² - 4ac

Tags

CCSS.HSA-REI.B.4B