Quadratic Vocabulary

What are other names for the roots?

• x-intercepts

• solutions

• zeros

• factors

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

• Vertex

• Focus

• Axis of Symmetry

• Directrix

What does the discriminant tell us about a quadratic equation?

• It indicates the nature of the roots by evaluating b² - 4ac.

• It provides the vertex of the parabola.

• It determines the axis of symmetry.

• It calculates the maximum value of the quadratic function.

What is the standard form of a quadratic equation?

• y = ax² + bx + c

• y = a(x - h)² + k

• y = mx + b

• y = ax³ + bx² + cx + d

What is the effect of changing the 'c' value in the standard form of a quadratic equation?

• It shifts the parabola up or down.

• It changes the width of the parabola.

• It alters the direction of the parabola's opening.

• It affects the x-intercepts of the parabola.

What is the axis of symmetry formula for a quadratic function?

• x = -b/(2a)

• x = b/(2a)

• x = -2b/a

• x = a/b

What does it mean if a parabola opens downwards?

• The coefficient 'a' is positive.

• The coefficient 'a' is negative.

• The coefficient 'a' is zero.

• The coefficient 'a' is an integer.

What does the 'a' in the quadratic equation affect?

• The direction and width of the parabola.

• The color of the graph.

• The number of solutions to the equation.

• The height of the vertex.

What are the roots of a quadratic equation?

• The x-values where the parabola intersects the x-axis.

• The coefficients of the quadratic equation.

• The maximum point of the parabola.

• The area under the curve of the parabola.

Where does the parabola cross the y-axis?

• Y-intercept

• X-intercept

• Vertex

• Focus