Focus of Parabola

• Upwards

• Downwards

• To the right

• To the left

Tags

CCSS.HSG.GPE.A.2

How does the distance between the focus and directrix affect the width of a parabola?

• Increasing the distance makes the parabola wider.

• Increasing the distance makes the parabola narrower.

• The distance does not affect the width of the parabola.

• The width of the parabola is only affected by the orientation of the directrix.

The focus is always inside the parabola.

• true

• false

The focus is at (2,0) and the vertex is at (-4,0).  What is the equation of the parabola?

• y² = 24(x+4)

• (y+4)² = -12x

• x² = 16(y+4)

• (x+4)²  = -20y

(y-4)² = -8(x+1)
What are the coordinates for the focus?

• (1,4)

• (-1,6)

• (-1,2)

• (-3,4)

The vertex is halfway between the focus and directrix.

• true

• false

Find the equation of the parabola with Focus at (7, 0) and directrix x = - 7.

Tags

CCSS.HSG.GPE.A.2

Find the equation of the parabola with Focus at (- 2,- 1) and Vertex (0, - 1).

Write the equation of the parabola given that the Focus is (0, 6) and the Directrix is y = - 6.

Tags

CCSS.HSG.GPE.A.2