Quadratic Formula

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

• Positive
• Negative
• Zero
• Not Sure

Tags

CCSS.HSA.REI.B.4

• 2

• -12

• 4

• -2

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CCSS.HSA.REI.B.4

• 7

• 5

• -1

• 1

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CCSS.HSA.REI.B.4

• 1 solution 

• 2 solutions

• no solution 

Tags

CCSS.HSA.REI.B.4

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.CED.A.1

CCSS.HSA.REI.B.4

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CCSS.HSA.REI.B.4

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• -4.9 and -0.1

• -8.54 and 8.54

• -0.45 and 3.55

• -6.77 and 1.77

Tags

CCSS.HSA.REI.B.4

Solve Using the Quadratic Formula
 x² + 4x - 40 = -8

• -10 & -4
• -4 & 10
• -8 & 4
• 8 & -4

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

• subtract 4 from both sides
  

• add 2x to both sides
  

• divide both sides by 3
  

• take half of 4 and square it
  

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4