Discriminant

The discriminant is

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

Tags

CCSS.HSA-REI.B.4B

For the function below, is the discriminant positive, negative, or zero?

___________

y = x² + 4x + 4

• Positive

• Negative

• Zero

• Not Sure

Tags

CCSS.HSA-REI.B.4B

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

• 76

• -7

• 9

• none of these

Tags

CCSS.HSA-REI.B.4B

In the equation
y = x² +5x +7, match each leading coefficient with its correct letter 

• a=0, b=5, c=7
• a=1, b=5, c=7
• a=7, b=5, c=1

Given that the value of A=-5 , B=1 and C=-5, solve for the discriminant.

• -99

• 99

• 101

• -100

Tags

CCSS.HSA-REI.B.4B

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

• 76

• 29

• 68

• none of these

Tags

CCSS.HSA-REI.B.4B

Find the discriminant: 2a² - 5a + 5 = 0

• 44

• 65

• -15

• -144

Tags

CCSS.HSA-REI.B.4B

Find the discriminant: 3k² + k - 1 = 0

• 36

• -11

• 13

• -20

Tags

CCSS.HSA-REI.B.4B

Identify the 'b' value: y = 16x² -8x -24

• 16
• -8
• 8
• -24

What is the discriminant for 5x² + x − 2 = 0

• -39

• 42

• -41

• none of these

Tags

CCSS.HSA-REI.B.4B