Finding the Discriminant

The discriminant is

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

Tags

CCSS.HSA-REI.B.4B

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

• Positive
• Negative
• Zero
• Not Sure

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

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

• 76

• 29

• 68

• none of these

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

What is the discriminant and how many solutions would this quadratic have?

x² - 6x + 9 = 0

• 0, No Solutions

• 0, 1 Solution

• 72, 2 Solutions

• -72, No Solution

Tags

CCSS.HSA-REI.B.4B

What is the discriminant and how many solutions would this quadratic have?

-8x² + 6x - 4 = 0

• -92, No Solutions

• 164, 2 Solutions

• -164, No Solutions

• 92, 2 Solutions

Tags

CCSS.HSA-REI.B.4B

What is the discriminant and how many solutions would this quadratic have?

4x² + 6x - 4 = 0

• -28, No Solutions

• 28, 2 Solutions

• 100, 2 Solutions

• -100, No Solutions

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of this equation?

3x² + 8x = 0

• 64

• 52

• 9

• 0

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of this equation?

-5x² - 6 = 0

• 120

• 36

• 16

• -120

Tags

CCSS.HSA-REI.B.4B

When in standard form, what is the value of a, b and c in this quadratic?

8x² + 3x - 6 = 3x

• a = 8 b = 0 c = -6

• a = 8 b = 6 c = -6

• a = 8 b = -6 c = 0

• a = 8 b = 3 c = -6

Tags

CCSS.HSA.REI.B.4