Discriminant

Determine the value of the discriminant and name the nature of the solution for the following:
x² + 2x - 63
Remember:  b² - 4ac

• 256, 2 reals rational solutions

• -256, 2 non-real imaginary solutions

• 137, 2 real irrational solutions

• 123, 2 real irrational solutions

Tags

CCSS.HSA-REI.B.4B

If the discriminant is positive, then the solution will be

• one real solution

• two real solutions

• no real solutions

• one imaginary solution

Tags

CCSS.HSA-REI.B.4B

If the Δ= 0 there is/are

• no solutions

• one solution

• two real solutions

• two complex solutions

Tags

CCSS.HSA-REI.B.4B

The discriminant of
-x² + 5x + 6

• 1
• 49
• 7
• -1

Tags

CCSS.HSA-REI.B.4B

• two distinct real roots

• one real root

• imaginary root

Tags

CCSS.HSA-REI.B.4B

DISCRIMINANT \sqrt{b^2-4ac}<\ 0

• two distinct real roots

• one real root

• imaginary root

Tags

CCSS.HSA-REI.B.4B

discrimant = 7 , describe the root of quadratic equation

• two distinct real roots

• one real root

• imaginary roots

Tags

CCSS.HSA-REI.B.4B

dicriminant = 0, describe the roots of quadratic equations

• two distinct real roots

• one real root

• imaginary roots

Tags

CCSS.HSA-REI.B.4B

• Positive

• Negative

• Zero

• Not Sure

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of -2x² − x − 1= 0 ? \left(discrimiant\ =\ b^2-4ac\right)

• 76

• -7

• 9

• none of these

Tags

CCSS.HSA-REI.B.4B