Graphs of Quadratics in Vertex Form

Identify the vertex and the axis of symmetry in the graph below.

• Vertex: (35, 12000), Axis of Symmetry: x = 35

• Vertex: (30, 10000), Axis of Symmetry: x = 30

• Vertex: (40, 11000), Axis of Symmetry: x = 40

• Vertex: (25, 9000), Axis of Symmetry: x = 25

Identify the vertex and the axis of symmetry in the graph below.

• Vertex: (-2, 6), Axis of Symmetry: x = -2

• Vertex: (2, 6), Axis of Symmetry: x = 2

• Vertex: (-2, -6), Axis of Symmetry: x = -2

• Vertex: (2, -6), Axis of Symmetry: x = 2

Identify the vertex and the axis of symmetry in the graph below.

• Vertex: (8, 0), Axis of Symmetry: x = 8

• Vertex: (4, 0), Axis of Symmetry: x = 4

• Vertex: (0, 8), Axis of Symmetry: x = 0

• Vertex: (12, 0), Axis of Symmetry: x = 12

Which equation represents the parabola below in vertex form?

• y = (x + 2)^2 + 4

• y = (x - 2)^2 + 4

• y = (x + 2)^2 - 4

• y = (x - 2)^2 - 4

What is the vertex of this parabola?

• (−1, 3)

• (−3, 11)

• (−2, 5)

• (0, 5)

Where is the axis of symmetry for this parabola?

• x = −1

• x = 0

• y = 3

• x = −3

Does this graph in the back have maximum or minimum value?

• maximum

• minimum

• neither

• both

Is this a max or min?

• max

• min

• cannot be determined

What is the axis of symmetry?

• the slope of the graph

• the dividing line for a parabola

• a way to spin my pencil

• the x-axis

What is the maximum/minimum of a parabola called?

• vertex

• point

• top

• bottom