Quiz: Quadratic Formula and the Discriminate

The formula for the discriminate is written as

• (x-H)² + K

• b² - 4ac

• 
• Ax²+Bx+C

Tags

CCSS.HSA-REI.B.4B

If the Discriminate is greater than 0 it has how many roots?

• 0

• 1

• 2

• 3

Tags

CCSS.HSA-REI.B.4B

If the Discriminate is less than 0 it has how many roots?

• 0

• 1

• 2

• 3

Tags

CCSS.HSA-REI.B.4B

If the Discriminate is equal to 0, it has how many roots?

• 0

• 1

• 2

• 3

Tags

CCSS.HSA-REI.B.4B

The graphs above show the discriminates as

• greater than 0, less than 0, equal to 0

• less than 0, equal to 0, greater than 0

• less than 0, greater than 0, equal to 0

• equal to 0, less than 0, greater than 0

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

• Positive
• Negative
• Zero
• Not Sure

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

Use the quadratic formula to solve 2x² + 2x - 12?

• -2, 3
• 2, 3
• 2, -3
• -2, -3

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula.
2x² - 9x - 35 = 0

• x = 7/2, x = -6
• x = -5/2, x =5
• x = -3/7, x =6
• x = -5/2, x = 7

Tags

CCSS.HSA-REI.B.4B

Solve using the Quadratic Formula:
x² + 4x + 3 = 0

• x = 1 and x = 3
• x = 6 and x = -2
• x = -1 and x = -3

Tags

CCSS.HSA-REI.B.4B