Understanding Quadratic Functions

What is the shape of the graph of a quadratic function called?

• Circle

• Hyperbola

• Parabola

• Ellipse

What is the term for the highest or lowest point on a parabola?

• Vertex

• Axis

• Intercept

• Focus

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

• Diameter

• Chord

• Axis of symmetry

• Tangent

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

• Vertices

• Foci

• X-intercepts

• Tangents

In the second example, what is the vertex of the parabola?

• -4, 0

• 2, 0

• -3, 1

• 3, -2