Review of Solving Quadratic/Radical Equations

Which functions represent the graph? (select all that apply)

• A f(x) = (x + 4)² - 9

• B) f(x) = (x - 4)² - 9

• C) f(x) = x² - 8x + 7

• D) f(x) = x² - 8x - 9

What is the vertex of the graph?

• (2, 4)
• (3, -1)
• (0, 8)
• (4, 2)

The vertex of this quadratic is...

• (1,16)
• (-3,0)
• (5,0)
• (0,15)

Find the vertex. y = x² + 16x + 71

• V(-8, 7)

• V(-8, 3)

• V(8, 10)

• V(16, -2)

What is the green dashed line called?

• roots or x-intercepts

• parabola

• axis of symmetry

• vertex

What is the axis of symmetry for this graph?

• y=2
• x=2
• x=0
• y=0

What is the equation for axis of symmetry?

• y=3
• x=3
• x=5
• x=1

What is the name given to the point

(0 , 7)?

• A) just a plain point

• B) root

• C) y-intercept

• D) vertex

What are the x-intercept(s)?

• (-4,0) and (0,0)

• (-2,-4) and (0,0)

• (0,-4) and (0,0)

• (0,0)

• (-2,-4)

What is the color of the graph that has no real zeros?

• black

• green

• purple

• red

• None of these graphs have no real zeros