CCSS.Math.Content.HSA.REI.B.4

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

Tags

CCSS.Math.Content.HSA.REI.B.4

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

• 4
• 2
• 8
• 20

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve using the quadratic formula...
9x² = 4 + 7x

• x = 2 and x = 3
• x = -1 and x = .25
• x = 1 and x = -.45
• x = 1.16, and x = -.38

Tags

CCSS.Math.Content.HSA.REI.B.4

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.Math.Content.HSA.REI.B.4

12.  Solve by factoring 
(x - 2 )² = 49

• -5, 9
• ^{7, -7}
• 9, -5
• ^{9, -9}

Tags

CCSS.Math.Content.HSA.REI.B.4

Name the Axis of Symmetry

• x = 1

• x = 0

Tags

CCSS.Math.Content.HSA.REI.B.4

What is the vertex of the function?

• (-3, -16)

• (3, 20)

• (-6, -7)

• (0, -7)

Tags

CCSS.Math.Content.HSA.REI.B.4

What method would you use to solve $x^2-16=0$   

• Factoring Method

• Completing the Square Method

• Quadratic Formula

• Square Root Method

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve by completing the square.
 $x^2-8x-20=0$  

•  $x=\left\{-2,\ 10\right\}$  

•  $x=\left\{-10,\ 2\right\}$  

•  $x=\left\{-20,\ -8\right\}$  

•  $x=\left\{8,\ 20\right\}$  

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve using the Quadratic Formula:
 $x^2-7x+10=0$ 

•  $x=2\ or\ x=5$  

•  $x=-2\ or\ x=-5$  

•  $x=4\ or\ x=10$  

• No real solutions

Tags

CCSS.Math.Content.HSA.REI.B.4