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

Factor
3a² + 4a + 1

• (7a-10)(a-8)
• Not factorable
• (3a+1)(a+1)
• (3a-1)(a-1)

Tags

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

If the graph of a quadratic does not intercept the x-axis at any point, then it has:

• 1 Real Solution
• 2 Real Solutions
• Half a Solution
• No Real Solution

Tags

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

The area of a playground is 336 yd2 . The width of the playground is 5 yd longer than its length. Find the length and width of the playground

•  length = 26 yd, width = 21 yd
• length = 21 yd, width = 26 yd 
• length = 21 yd, width = 16 yd 
• length = 16 yd, width = 21 yd

Tags

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

Factor
r² -16r + 60

• (r - 15)(r + 4)
• (r - 6)(r + 10)
• (r - 6)(r - 10)
• (r +30)(r - 2)

Tags

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

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

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

• True
• False

Tags

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

Determine the value of the discriminant and name the nature of the roots for the following:
x² + 7x + 13
Remember:  b² - 4ac

• 400, 2 real root 
• 0, 1 real root with a multiplicity of 2
• -400, 2 imaginary roots
• -3, 2 imaginary roots

Tags

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

Solve
x² + 2x - 24 = 0

• x = -6, x = 4
• x = 6, x = -4
• x = 12, x = -2
• x = 8, x = -3

Tags

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

A brick falls from the top of a building.  The equation h=-16t² - 21t + 200 represents the height of the brick h in feet after t seconds.  How long will it take the brick to reach the ground? Round your answer to the nearest tenth as needed.)

• 2.8
• 2.9
• 3.0
• 0 

Tags

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

What is the vertex of y= x² - 8x + 14 ?

• (2, 4)
• (-4, -2)
• (4, -2)
• (-2, 4)

Tags

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