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

Solve the following equation by completing the square:
n² - 2n - 3 = 0

• {3, -1}
• {4, -4}
• {5, -3}
• {8, -7}

Tags

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

Factor
4n²-17n-15

• (n-10)(6n+1)
• (4n-5)(n-3)
• (n-5)(4n-3)
• (n-5)(4n+3)

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

Find the area of the region enclosed by the lines and curves.

y = 3x + 4 and y = x² + 4

• 9

• 93/2

• 9/2

• 18

Tags

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

Solve by factoring.
15 = 8x² - 14x

• x = -5 or x = 3/8
• x = -2/5 or x = 4/3
• x = -3 or x = 5/8
• x = -3/4 or x = 5/2

Tags

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

What is the equation for the axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Tags

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

Factor:
x² + 7x - 30

• (x + 10)(x - 7)
• (x - 10)(x + 3)
• (x + 10)(x + 3)
• (x + 10)(x - 3)

Tags

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

What's the axis of symmetry of y = 3x² - 6x + 4

• x=1
• x=-6
• x=2
• x=-1

Tags

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

You jump off a 24 foot high cliff and your fall is modeled by the function:

h(t) = -16t² + 8t + 24

How long would it take you to hit the water?

• 8 seconds

• 1 second

• 1.5 seconds

• 1/4 second

Tags

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

The profit from selling local ballet tickets depends on the ticket price. Using past receipts, we find that the profit can be modeled by the function:

p= -15x² +600x +60

What is the maximum profit you can make from selling tickets?

• $6060

• $20

• $600

• $10,250

Tags

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