Analyzing the Discriminant

• Two distinct real roots

• One real root

• Two complex roots

• No roots

• 1

• 5

• 0

• -7

• Two distinct real roots

• One real root

• Two complex roots

• No roots

The discriminant is

• aX²  + bX  +  c

• b - 4ac

• b² - 4ac

• b² + 4ac

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

• Positive

• Negative

• Zero

• Not Sure

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

• 76

• -7

• 9

• none of these

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

• 76

• 29

• 68

• none of these

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

• -39

• 42

• -41

• none of these

If the discriminant is positive, then the solution will be

• one real solution

• two real solutions

• no real solutions

• one imaginary solution

A function has a discriminant of 25.
______________
How many solutions does it have?

• 0

• 1

• 2

• 5