Properties of Quadratics

The graph of a quadratic function is called a

• Parabola

• Vertex

• Axis of Symmetry 

• Vertex Form

What is the green dashed line called?

• roots or x-intercepts

• parabola

• axis of symmetry

• y intercept

Is the graph of the equation shown wider, narrower or the same width as the standard parabola y = x² ?

• wider

• narrower

• same width

• impossible to tell

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

• up

• down

• left

• right

• wider

• narrower

• same width

• impossible to tell

Identify the zero(s).

• 4

• 6

• -4 and 1

• -1.5 and 6

Identify the vertex.

• (-2.5, 2.5)

• -6

• (-6, 0)

• (0, -6)

What is the axis of symmetry for the following equation?
y=4x²-8x+9

• x=-8

• x=1

• x=-1

• x=2

Find the vertex of 
f(x) = -x² - 4x + 12

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

What direction is the following equation opening?
y=-3x²-7x+8

• Up

• Down

• Left

• Right