The Discriminant of Quadratic Formula

Solve x² - 5x + 10 = 0.

• x = (5 - i√15)/2, (5 + i√15)/2

• x = (5 - √15)/2, (5 + √15)/2

• x = (5 - i√65)/2, (5 + i√65)/2

• x = (5 - √65)/2, (5 + √65)/2

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

If the discriminant of the quadratic equation is equal to 0, how many real solutions are there?

• None

• One

• Two

• Infinite

Tags

CCSS.HSA-REI.B.4B

If the discriminant of the quadratic equation is equal to 4, how many real solutions are there?

• None

• One

• Two

• Infinite

Tags

CCSS.HSA-REI.B.4B

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

• 76

• 29

• 68

• none of these

Tags

CCSS.HSA-REI.B.4B

What is the formula for the discriminant of a quadrartic equation?

Tags

CCSS.HSA-REI.B.4B

What does the discriminant tell us about a quadratic function?

• The maximum or minimum value

• The y-intercept

• The number and type of solutions

• The axis of symmetry

Tags

CCSS.HSA-REI.B.4B

If the discriminant is equal to -2, how many real solutions are there?

• None

• One

• Two

• Infinite

Tags

CCSS.HSA-REI.B.4B

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

___________

y = x² + 4x + 4

• Positive

• Negative

• Zero

Tags

CCSS.HSA-REI.B.4B

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

• 76

• -7

• 9

• none of these

Tags

CCSS.HSA-REI.B.4B

For the function above, determine whether the discriminant is positive, negative, or zero.

• Positive

• Negative

• Zero

Tags

CCSS.HSA-REI.B.4B