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

What is the formula to find the vertex of a parabola?

• x = -b/2
• x = -b
• x = -b / (2a)
• x = -b / 2

Tags

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

Identify the vertex and whether the graph opens up or down.

• (-1, 4); opens up
• (-1, 4); opens down
• (1, 4); opens up
• (1, 4); opens down

Tags

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

A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
 h = -16t² + 64t + 960.
How many seconds did it take for the ball to reach its maximum height?

• 10 seconds
• 64 seconds
• 960 seconds
• 2 seconds

Tags

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

Solve the quadratic equation.
3x² - 8x - 8 = 0

• A    {0.38, -0.88} 
• B  {0.89, -8.9}
• C . {0.13, -0.63}
• D . {3.44, -0.77}

Tags

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

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Tags

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

Identify a,b, and c based on the quadratic formula.
2x²-3x+24=0

• a=2, b=-3, c=24
• a=2, b=3, c=24
• a=2, b=-3,c=-24
• a=2, b=3, c=-24

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 axis of symmetry for the function 2x²+8x+2 is -2. What is the vertex?

• (-2, -6)

• (-6, -2)

• (2, 6)

• (6, 2)

Tags

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