Chapter 9 - Final Exam Review

What is the y-intercept of the equation
y = 2x²+8x+3?

• (0,3)
• (3,0)
• (0,2)
• y=8

What is the vertex of the graph?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

How does the parabola open? y = - x² + 4x - 1

• up
• down
• left
• right

What is the vertex of y= x² - 8x + 14 ?

• (2, 4)
• (-4, -2)
• (4, -2)
• (-2, 4)

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

What are the green dots called?

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

If a is negative in the function, which way does the parabola open?

• up
• down
• left
• right

What is the domain of all quadratic functions?

• x ≥ 0
• x ≤ 0
• All real numbers

Is this point (the vertex) a max or min?

• max
• min

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

• Maximum
• Minimum