8.1 - 8.3

Using the graph of the quadratic function, identify the y-intercept.

• (4, -6)

• (0, 2)

• (.5, 0)

• (7.5, 0)

What is a parabola?

• The straight graph of a quadratic function

• The circular graph of a quadratic function

• The V-shaped graph of a quadratic function

• The U-shaped graph of a quadratic function

Using the graph of the quadratic function, identify the vertex.

• (4, -6)

• (0, 2)

• (.5, 0)

• (7.5, 0)

What is the axis of symmetry?

• A line whose equation is the x-coordinate of a parabola's vertex

• A central line that divides a parabola into mirror images

• A line that intersects a parabola at the vertex

• All of the above

Which of the following graphs appropriately marks the axis of symmetry?

• 
• 
• 
• 

Does this graph have a maximum or minimum value?

• maximum
• minimum
• neither
• both

Does the graph of
-2(x + 5) + 2
have a minimum or a maximum?

• Minimum
• Maximum
• It has neither.
• It has both.

Given the equation for this parabola:
 y = -(x-4)² - 3,
does this parabola have a maximum or minimum value?

• Maximum
• Minimum

Find the y-intercept of
f(x) = 2x²-2x + 1

• 2
• -2
• 1
• -1

Find the vertex.

• (-3,-4)
• (-2,-4)
• (2,-4)
• (2,4)