Quadratic equation and functions

Determine the values of
a, b, and c for
the quadratic equation: 
4x² – 8x = 3

(Don't forget it needs to be equal to zero)

• 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

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

• -2, 3
• 2, 3
• 2, -3
• -2, -3

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

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

Tags

CCSS.HSA-REI.B.4B

Solve    
2x² + 7x - 15 = 0

• -1.5 or 5
• No Solution
• -5 or 1.5
• 0.7 or 5

Tags

CCSS.HSA-REI.B.4B

How many solutions does the equation 4x² + 4x + 1 = 0 have?

• 0
• 1
• 2
• More than 2

Tags

CCSS.HSA-REI.B.4B

Solve using the Quadratic Formula

4x² - 7x = -3

• x = 1, 0.75

• x = -1, -0.75

• x = 2.11, -0.36

• x = -2.11, 0.36

Tags

CCSS.HSA-REI.B.4B

9x+3=21 what does x equal?

• x=3
• x=2
• x=4
• x=8

Tags

CCSS.7.EE.B.4A

Solve using the quadratic formula.

2n²-2n-12=0

• 8, 2

• 2, -3

• 3, -2

• 2, -12

Tags

CCSS.HSA-REI.B.4B

What do you do to the b value to correctly complete the square?

• square it
• divide it by 2 and square the result
• divide it by 2 and take the square root of the result
• divide it by 2 only

Tags

CCSS.HSA-REI.B.4B