Quadratic Formula

What is this formula?

• This is the standard formula.

• This is the quadratic formula.

• This is the square root formula.

• This is the Pythagorean formula

Tags

CCSS.HSA-REI.B.4B

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

• True
• False

Tags

CCSS.HSA-REI.B.4B

Identify a, b and c for the following Quadratic:

4x² - 5x + 6 = 0

• a = 6, b = - 5, c = 4

• a = 6, b = 4, c = -5

• a = 4, b = - 5, c = 6

• a = 4, b = 5, c = 6

Tags

CCSS.HSA.REI.B.4

Identify a, b and c for the following Quadratic:

-8x² + x + 7 = 0

• a = 8, b = 1, c = 7

• a = - 8, b = 1, c = 7

• a = 7, b = 8, c = 1

• a = 1, b = 7, c = - 8

Tags

CCSS.HSA.REI.B.4

Identify a, b and c for the following Quadratic:

x² + 2x = 4

• a = 1, b = - 4, c = 2

• a = 1, b = 2, c = 4

• a = 1, b = 2, c = 0

• a = 1, b = 2, c = - 4

Tags

CCSS.HSA.REI.B.4

Identify a, b and c for the following Quadratic:

x² + 4 = 0

• a = 1, b = - 4, c = 2

• a = 1, b = 0, c = 4

• a = 1, b = - 4, c = 0

• a = 1, b = 0, c = - 4

Tags

CCSS.HSA.REI.B.4

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

Tags

CCSS.HSA-REI.B.4B

What should you do first in solving this equation?

x² + 6x - 13 = 3

• Factor

• Write down: a = 1, b = 6, c = -13

• Subtract 3 from both sides.

• Add 3 to both sides.

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

2x²-x -3=0

• x=-3/2  x=1
• x= 3/2 x= -1
• x= -3/2 x= -1
• x= 3/2 x= 1

Tags

CCSS.HSA-REI.B.4B