Quadratics

What is the degree of a quadratic function?

• 0
• 3
• 2
• 4

completely factor 2x³+6x²

• 2x(x²+3)
• x²(2x+6)
• 2x²(x+3)
• 2(x+3)

On a quadratic function, the axis of symmetry is x=5.  Which of these could be the x-intercepts?

• (5,0)(-5,0)
• (-3,0) (-7,0)
• (2,0) (8,0)
• (0,0) (5,0)

(1-2i)(2+3i)

• 3+i
• 8-i
• 2-6i
• 2+6i

(10+3i) - (2-9i)

• 20-27i
• 12-7i
• 8+12i
• 20-27i²

What is another word for zeros?

• y-intercepts

• roots

• vertex

• axis of symmetry

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.HSA.REI.B.4

Solve      3x² - 192 = 0

• -32 or 32
• No Solution
• -8 or 8
• -64 or 64

Solve by taking square roots:
4m² - 100 = 0

• m=25, -25
• m=96
• m=5, -5
• m=-96

What is the vertex of
f(x) = 2(x - 5)² + 12

• (-5, -12)
• (5,-12)
• (5, 12)
• (-5, 12)