Identifying Quadratic Function Characteristics

What is the shape of a quadratic function called?

• Ellipse

• Circle

• Parabola

• Hyperbola

What is the highest or lowest point on a parabola called?

• Axis of Symmetry

• Directrix

• Focus

• Vertex

What is the imaginary line that divides a parabola into two symmetrical parts called?

• Focus

• Directrix

• Tangent

• Axis of Symmetry

Where does a parabola cross the y-axis?

• Vertex

• Focus

• Y-intercept

• X-intercept

What are the points where a parabola crosses the x-axis called?

• Y-intercepts

• Foci

• X-intercepts

• Vertices

In the example of an upward-facing parabola, what is the vertex?

• (-4, -4)

• (-6, 0)

• (-2, 0)

• (0, 12)

What is the domain of all quadratic functions?

• All positive numbers

• All integers

• All negative numbers

• All real numbers

For an upward-facing parabola with a vertex at (-4, -4), what is the range?

• x ≤ -4

• y ≥ -4

• y ≤ -4

• x ≥ -4

In the example of a downward-facing parabola, what is the y-intercept?

• (0, 12)

• (-4, 0)

• (-2, 0)

• (0, -16)

For a downward-facing parabola with a vertex at (-3, 2), what is the range?

• x ≤ 2

• y ≥ 2

• y ≤ 2

• x ≥ 2