Discriminant

If the discriminant is equal to 0, how many solutions are there?

• No solutions

• 1 Solution

• 2 Solutions

• Infinite solutions

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of this equation?

• 120

• 36

• 16

• -120

Tags

CCSS.HSA-REI.B.4B

What is the formula for the discriminant?

• x = -b/2a

• b² - 4ac

• a² + b² = c²

• x = [-b±√(b²-4ac)]/2a

Tags

CCSS.HSA-REI.B.4B

If the discriminant is equal to 4, how many solutions are there?

• No Solutions

• 1 Solution

• 2 Solutions

• Infinite Solutions

Tags

CCSS.HSA-REI.B.4B

Aria, Elijah, and Daniel are trying to launch a homemade rocket. The height of the rocket, in meters, can be modeled by the quadratic equation -3x² - 5x + 15 = 7. What is the discriminant of this equation and how many solutions would it have?

• 205, 2 Solutions

• -71, No Solutions

• 121, 2 Solutions

• 121, 1 Solution

Tags

CCSS.HSA-REI.B.4B

What does the discriminant tell us?

• The maximum or minimum

• The y-intercept

• The number and type of solutions

• The axis of symmetry

Tags

CCSS.HSA-REI.B.4B

If the discriminant is POSITIVE, the equation will have...

• 2 real solutions

• 1 real solution

• No real solutions

Tags

CCSS.HSA-REI.B.4B

The formula to determine how many solutions a quadratic equation has is called the discriminant, which is...

• aX² + bX + c

• b - 4ac

• b² - 4ac

• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

• One Imaginary Solution

• One Real Solution

• Two Real Solutions

• Two Real Solutions

Tags

CCSS.HSA-REI.B.4B

Given the graph, what must the sign of the discriminant be?

• Positive

• Negative

• Zero