Understanding Parabolas

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

• Hyperbola

• Ellipse

• Parabola

• Circle

In a parabola, what is the vertex?

• The point where the parabola intersects the y-axis

• The point where the parabola intersects the x-axis

• The highest or lowest point of the parabola

• The midpoint of the parabola

How can you determine if a parabola opens upwards or downwards?

• By the color of the graph

• By the direction of the arrowheads

• By the length of the axis of symmetry

• By the number of x-intercepts

What is the formula for the axis of symmetry in a parabola?

• X = H

• X = K

• Y = H

• Y = K

What is the domain of a parabola?

• All negative real numbers

• All positive real numbers

• All integers

• All real numbers

How is the range of a parabola determined?

• By the axis of symmetry

• By the vertex

• By the y-intercepts

• By the x-intercepts

Where does a parabola intersect the x-axis?

• At the vertex

• At the x-intercepts

• At the y-intercepts

• At the axis of symmetry

Where does a parabola intersect the y-axis?

• At the vertex

• At the x-intercepts

• At the axis of symmetry

• At the y-intercepts

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

• (3, 0)

• (0, -9)

• (-1, 8)

• (-3, 0)

What is the range of the example parabola?

• Y ≤ 8

• Y = 3

• Y ≥ -9

• Y = 0