Solving and graphing quadratics quizziz assessment

Which of the following represents the solutions to the equation:  
3x² + 4x – 20 = 0?

• 0 and -20
• 3.33 and -2
• -3.33 and 2
• -0.67 and -21.33

Tags

CCSS.HSA.REI.B.4

What are the solutions?

• 0 and 8
• -2 and -4
• 3 and -1
• 2 and 4

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

CCSS.HSA.REI.C.7

CCSS.HSA.REI.D.11

Solve
2x² + 17x + 21 = 0

• x= ^-21/₂, -17
• x= ²/₃, 16
• x=-7, ^-3/₂
• x=15, -³/₇

Tags

CCSS.HSA.REI.B.4

What are the x-interepts for the graph of the function:  y = x² - 3x - 10 

• -5, 2
• -5, -2
• 5, -2
• 5, 2

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Which of the following graphs matches the equation.

• A

• B

• C

Shift f(x)=x² three units to the left and 4 units down

• f(x)=(x+3)²-4
• f(x)=(x-3)²-4
• f(x)=(x+4)²-3
• f(x)=(x-4)²-3

Tags

CCSS.HSF.BF.B.3

CCSS.HSF.IF.B.4

How would you describe the translation from f(x)=x²  to  f(x)=(x-3)² ?

• Horizontal translation: three units to the left
• Horizontal translation: three units to the right
• Vertical translation: three units up
• Vertical translation: three units down

Tags

CCSS.HSF.BF.B.3

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.4

Solve using the quadratic formula:

• a
• b
• c

A raft is dropped from a helicopter 256 feet in the air above the ocean.  Its approximate height, h, after t seconds is given by the function h(t) = -16t² + 256.  How many seconds did it take the raft to hit the water? (Round to the nearest whole number)

• -4
• 2
• 4
• 8

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.1

Find the roots: 5x² + 31x + 6 = 0

• x = -1 and x = -6

• x = -1/5 and x = 6

• x = -1/5 and x = -6

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4