Identify the focus and directrix of a parabola

The video tutorial explains the orientation of parabolas based on whether X or Y is squared, and how this affects the direction in which the graph opens. It covers identifying the vertex of a parabola and labeling it on a graph. The concept of P is introduced, explaining its role in determining the distance from the vertex to the focus. The tutorial also discusses the directrix and how the parabola opens towards the focus, providing a comprehensive understanding of graphing parabolas.

What happens to the orientation of a parabola when X is squared?

• The parabola opens up or down.

• The parabola opens left or right.

• The parabola does not change orientation.

• The parabola becomes a circle.

What is the vertex of the parabola if the coordinates are given as (1, 0)?

• (0, 1)

• (1, 0)

• (0, 0)

• (1, 1)

How do you calculate the value of P if P equals -8 divided by 4?

• P = 4

• P = -2

• P = -4

• P = 2

If P is negative, in which direction does the parabola open?

• Left

• Downwards

• Right

• Upwards

What is the equation of the directrix if the focus is at (1, -2)?

• y = -2

• y = 2

• x = -2

• x = 2