Quadratic Formula

Solve a² - 4a + 4 = 0 using the quadratic formula

• 2

• -2

• 4

• -4

• No Solution

Solve 2r² - 3r -5 = 0 using the quadratic formula

• x = 1/2, -2

• x = 5/2, -1

• x = 2, -1/2

• x = 1, -5/2

• No Solution

Solve 2p² - 3a + 1 = 0 using the quadratic formula

• x = 5, -4

• x = 4, -5

• x = 1, 1/2

• x = -1/2, -1

• No Solution

Solve n² - 4n + 4 = 0 using the quadratic formula

• x = 3, 2

• x = -2, -3

• x = 2

• x = -2

• No Solution

Fill in the formula =​ = ​ = ​

• -6

• 1

• -40

• -1

• 6

• 40

j

h

d

-2a

2a

-b

b^2+4ac

b

b^2-4ac

a^2

4ac-b^2

b^2

-b^2-4ac

Tags

CCSS.MATH.CONTENT.HSN.CN.C.7

CCSS.MATH.CONTENT.HSA.SSE.A.1.b

Fill in the formula x^2-6x-40=0 ​ BLUE=​ (a)   RED= ​ (b)   GREEN= ​ (c)  

• -6

• 1

• -40

• -1

• 6

• 40

Fill in quadratic formula

j

h

d

b^2+4ac

-b

b^2-4ac

b^2

-b^2-4ac

2a

a^2

b

-2a

4ac-b^2

What does the discriminant determine?

• Whether the graph goes up or down

• The vertex

• The number of Solutions

• The y-intercept