2/18 New Vocab

If the directrix is y = 4 and the focus is at (3, 0), the value of p is:

• 8
• -8
• 2
• -2

The focus is always inside the parabola.

• true
• false

The sign of the 'p' value determines if the graph opens upward or downward.

• True
• False

Tags

CCSS.HSF-IF.C.7A

The vertex, (h, k), is halfway between the focus and the directrix.

• true
• false

Find the vertex of the parabola if the focus is at (2,4) and the directrix is at y=2

• (2,3)

• (1,4)

• (3,4)

• (2,5)

Find the vertex if the focus is at (9,0) and the directrix is at x=-9

• (-9,0)

• (0,9)

• (0,0)

• (0,-9)

Select the right choice for the directrix of provided quadratic function plot

Select the right choice for the vertex of the given function

Where is the location of the "Focus" of the parabola y = -x^2+4

Which of the following is the correct label of "A" on the graph

• Vertex

• Directrix

• Focus

• Axis of Symmetry