Describing Parabolas

Which characteristic describes where the highest or lowest point of a parabola is located?

• Vertex

• Zeros

• y-intercept

• Reflections

What is the vertex of this parabola?

• (−1, 3)

• (−3, 11)

• (−2, 5)

• (0, 5)

What is the y-intercept of this parabola?

• (−1, 3)

• (−3, 11)

• (−2, 5)

• (0, 5)

Where is the line of symmetry for this parabola?

• x = −1

• x = 0

• y = 3

• x = −3

What do we call the graph of a quadratic function?

• parabola

• linear

• cubic

• sinusoidal

Which best describes the vertex of a parabola?

• Any point on the parabola.

• A point on the x-axis.

• The highest or lowest point of a parabola

• A point on the y-axis.

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots or x-intercepts

What is the vertex of this parabola?

• (-2, 0)

• (0, 0)

• (-1,3)

• (3, -1)

The line of symmetry is a line that goes through the...

• y-intercept

• any random point

• vertex

• x-axis or y-axis

Identify the vertex. Is the graph of this function concave up or down?

• (5, 2); concave up

• (5, 2); concave down

• (-5, 2); concave up

• (-5, 2); concave down