Quadratic Formula and discriminant

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.

Use the quadratic formula to solve:

• A

• B

• C

• D

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

Use the quadratic formula to solve:

• A

• B

• C

• D

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

The discriminant is

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

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

• 76

• -7

• 9

• none of these

Find the discriminant of the following equation.

3x² -x- 2 = 0

• 5
• 25
• -24
• -26

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of 6x² − 2x − 3 = 0

• 76
• 29
• 68
• none of these

What is the discriminant of -4x² − 4x + 5 = 0

• 84
• -64
• 96
• none of these