Question

Find the vertex, value of p, axis of symmetry, focus, and directrix of the parabola. I will write the equation down shortly

Answer 1

y-4=-1/2(x-8)^2

Answer 2

@Hero

Answer 3

@Mertsj

Answer 4

@nathan917

Answer 5

y - 4 = -1/2(x - 8)^2

y = -1/2(x - 8)² + 4

Vertex (8,4) <=x value opposite of inside parentheses and outside number for y

a = -1/2

a = 1/(4p)

-1. . . 1
---- = -----
2 . . .4p

-4p = 2

p = -1/2

Focus (8,3.5) <=vertex plus p value onto y

Directrix: y = 4.5 vertex y value - p which is - (-.5) or + .5

Axis of Symmetry: x = 8 <= x value of vertex

Answer 6

Whats the point of tags if no one comes? But me :D

Answer 7

What i mean is when you tag some one they should come.

Answer 8

@nathan917 haha ok im here now

Answer 9

:D.

Answer 10

yay u gonna help

Answer 11

@nathan917

Answer 12

Whats your Question? id be glad to help.

Answer 13

Simplify. Assume that all expressions are defined. (1/x)+(1/2x)/((x+4)/(x-2))

Answer 14

@nathan917 im sorry my equation button thing on here isnt working