9-6 Solving Quadratic Equations using the 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

The quadratic formula can be used to solve quadratic equations that cannot be factored.

• True

• False

Tags

CCSS.HSA-REI.B.4B

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 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.4B

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

• 16
• 8
• -8
• -24

What is the b value of 3x²+14x-12=0?

• 3

• 14

• -12

• 0

Tags

CCSS.HSA.REI.B.4

What is the c value of 3x²=12?

• 3

• 12

• -12

• -3

Tags

CCSS.8.EE.A.2

Solve 2x² + 7x - 15 = 0 using the quadratic formula

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 5

Tags

CCSS.HSA-REI.B.4B

Solve 8x² - 6x + 1 = 0 using the quadratic formula

• No Solution

• 0 or 1

• -0.5 or -0.25

• 0.25 or 0.5

Tags

CCSS.HSA-REI.B.4B

Solve 3x² - 11x + 10 = 0 using the quadratic formula

• 1.7 or 2

• 1 or 2

• 1.5 or 2

• -1.7 or 2

Tags

CCSS.HSA-REI.B.4B