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

Solve the equation by completing the square and then finding the roots. 
x²+ 6x - 4 = 36

• x = -7, 7
• x = 4, -10
• x = -4 +- √7
• x = 10, -4

Tags

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

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

Tags

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

7x² - 26x - 8 = 0

• x = -1 and x = -7/8
• x = 4 and x = -2/7
• x = -4 and x = 2/7
• x = 4 and x = -7/2

Tags

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

How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Tags

CCSS.Math.Content.8.F.A.1

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

What is the FIRST step I need to take to solve for x in the following equation?

• Add 9 to both sides

• Take the square root of both sides

• Divide both sides by 49

• Multiply both sides by 9

Tags

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

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• No Real Solution

• 
• 
• 

Tags

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

Determine the values of

a, b, and c for

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

Tags

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

Solve by taking the square root:

7x² + 1 = 8

• ± 1

• ± 7

• ± √7

• ± 8

Tags

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

An object in launched directly upward and the height of the object is represented by the equation s(t) = –16t² + 64t + 80. What is the initial velocity the object is launched at?

• 64 feet

• 80 feet

• 16 feet

• -16 feet

Tags

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

 $x^2-6x+4=0$  

•  $3\pm\sqrt{5}$  

•  $\frac{6\pm\sqrt{20}}{2}$  

•  $3\pm\sqrt{20}$  

•  $3\pm i\sqrt{13}$  

Tags

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