Parabola and Graphing

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)

Using this graph, find p.

• -6

• 6

• 12

• -12

Find the vertex if the focus is at (-4,-3) and the directrix is at x=2

• (-1,-3)

• (-4,0)

• (-10,-3)

• (0,0)

What is the vertex of this parabola?
\left(x-4\right)^2=8\left(y+5\right)

• (3,4)

• (4,-5)

• (-5,4)

• (-4,-3)

If the directrix is above the vertex the parabola opens ​ (a)   and if the directrix is below the vertex the parabola opens ​ (b)  

• down

• up

• left

• right

Plot the positive parabola by placing the y-intercept at y=-3 and the vertex at (2,-4)

Graph the parabola represented by the equation:

Graph the parabola represented by the equation:

What is the vertex for this parabola?

• (9,-8)

• (-8,9)

• (-8,8)

• (-9,8)

• Above the vertex

• Below the vertex

• To the right of the vertex

• To the left of the vertex