Sum and Product and Discriminant

What is the nature of the roots of the quadratic equation if the value of its  discriminant is zero?

• The roots are not real

• The roots are irrational and not equal

• The roots are rational and not equal

• The roots are rational and equal

Tags

CCSS.HSA-REI.B.4B

Which of the following quadratic equations has no real roots?

Tags

CCSS.HSA-REI.B.4B

• -7

• 3

• -6

• 14

Tags

CCSS.HSA-REI.B.4B

For which equation does the sum of the roots equal -3 and the product of the roots  equals 2?

Tags

CCSS.HSA-REI.B.4B

• -108

• 0

• 108

• 144

Tags

CCSS.HSA-REI.B.4B

• -4

• 4

Tags

CCSS.HSA-REI.B.4B

• -4

• 4

Tags

CCSS.HSA-REI.B.4B

• -6

• 6

• -14

• 14

Tags

CCSS.HSA-REI.B.4B

The discriminant is

• A. aX²  + bX  +  c

• B. b - 4ac

• C. b² - 4ac

• D. b² + 4ac

Tags

CCSS.HSA-REI.B.4B

What is the nature of the roots of a quadratic equation if the value of its discriminant is NEGATIVE?

• A. The roots are not real

• B. The roots are rational and equal

• C. The roots are rational and not real

• D. The roots are irrational and not equal

Tags

CCSS.HSA-REI.B.4B