Parabolas

What are the green dots called?

• axis of symmetry
• vertex
• parabola
• roots or x-intercepts

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

Does this parabola have a maximum or minimum?

• Maximum
• Minimum

When a parabola opens downward the vertex is

• a minimum
• a maximum
• a vertex
• a parabola

Does the equation open or or down? 
Y = -3x² +7x - 2

• up
• down

Does this graph have any real zeros?

• yes

• no

Which formula do you use to find the x-value of the vertex?

• 
• 
• 
• 

What is the x-value of the vertex? y = x² - 8x + 11

• 8

• -8

• 4

• -4

What's the vertex of the following quadratic function?
2x² - 8x + 11

• (-2, 3)
• (3, 2)
• (2, 3)
• (3, -2)

What is the sum of x and y in the vertex of the following?
x² - 8x + 18