Review Parabolas and Circles

Write the standard form of the equation of the parabola with directrix at x = -1 with focus at (5,-2)

type on the answer choice

If given the equation y+4 = 3(x + 5)², what is the vertex of the parabola?

• (5, -4)

• (-5, -4)

• (-15, -4)

• (15, -4)

The focus is always inside the parabola.

• true
• false

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

• 8
• -8
• 2
• -2

The directrix is a _______ that always lies ________ your parabola.

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4
• 2
• 3
• 16

Tags

CCSS.HSG.GPE.A.1

In the equation (x-3)²+(y-2)²=16, the center of the circle is...

• (3,2)
• (-3, -2)
• (-2, -3)
• (2, 3)

Tags

CCSS.HSG.GPE.A.1