Quadratic Formula

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

What is this formula?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

Tags

CCSS.HSA-REI.B.4B

Identify the 'b' value: y = 16x² -8x -24

• 16
• -8
• 8
• -24

Identify the 'a' value: y = 16x² -8x -24

• 16
• 8
• -8
• -24

Identify a, b and c in the quadratic equation: $2x^2-3x-5=0$   

• a = 2 , b = 3, c = -5

• a = 2, b = -3, c = 5

• a = 2, b = -3, c = -5

• a = -2, b = 3, c = 5

Tags

CCSS.HSA.REI.B.4

 $Use\ \sqrt{b^2-4ac}\ \ \ with\ \ 2m^2+3m-9=0$  

• 9

•  $\sqrt{9}$  
  

• 3

•  $\sqrt{72}$  
  

 $Use\ \sqrt{b^2-4ac}\ \ \ with\ \ 2v^2+2v\ +6=0$  

•  $4\sqrt{11}$  
  

•  $2\sqrt{11}$  
  

•  $2i\sqrt{11}$  
  

Use

 $\sqrt{b^2-4ac}$  
with  $x^2+4x+3=0$  

• 4

• 4i

• 2

• 2i

The discriminant is

• ax² + bx + c

• b - 4ac

• b² - 4ac

• b² + 4ac

Tags

CCSS.HSA-REI.B.4B

Simplify √-4

• 2i
• -2i
• 2
• 4i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2