Parabola Vertex and Axis of Symmetry

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Does this graph have a maximum or minimum?

• Minimum
• Maximum

If the a value is positive, which direction does the graph open?

• up
• down
• left
• right

If the a value is negative, which direction does the parabola open?

• up
• down
• left
• right

The equation for the axis of symmetry line is x = -b/(2a)

• true
• false

What is the axis of symmetry  y=4x²+8x+8?

• x = -1
• x = 1
• x = 2
• x = -2

Find the axis of symmetry of f(x)= -2x²-16x+3.

• x= 4
• x=-4
• y= 4
• y=-4

What is the vertex of y=x²+4x+3?

• (2,1)
• (-2,1)
• (0,0)
• (-2,-1)

Find the vertex of f(x)= -2x²-16x+3.

• (4, -93)
• (-4, 35)
• (-4,99)
• (8,3)

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

• x=1
• x=-6
• x=2
• x=-1