Quadratic Formula (2025)

What does the discriminant determine?

• Whether the graph goes up or down

• The vertex

• The number of Solutions

• The y-intercept

Tags

CCSS.HSA-REI.B.4B

If the discriminant is positive, how many real zeros does the graph have?

• 2

• 1

• 0

• infinitely many

Tags

CCSS.HSA.REI.B.4

If the discriminant is negative, how many real zeros does the graph have?

• 2

• 1

• 0

• infinitely many

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

If the discriminant is zero, how many real roots does the graph have?

• 2

• 1

• 0

• infinitely many

Tags

CCSS.HSA-REI.B.4B

What is the discriminant of this graph?

• Positive

• Zero

• Negative

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What is the discriminant of this graph?

• Positive

• Zero

• Negative

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

What is the discriminant of this graph?

• Positive

• Zero

• Negative

Tags

CCSS.HSA.REI.B.4

Determine the values of a, b, and c for the quadratic equation:

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b = -8, c = -3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Tags

CCSS.HSA.REI.B.4

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation?

x² + 6x - 13 = 3

• Factor

• Write down: a = 1, b = 6, c = -13

• Subtract 3 from both sides.

• Add 3 to both sides.

Tags

CCSS.HSA-REI.B.4B