Question

What is the directrix for the following graph?

Answer 1

y = 1

x = -1

x = 1

y = -1

Answer 2

I don't understand the question. They show the directrix in the picture.

Answer 3

It's that dotted vertical line to the left of the parabola.

Answer 4

so would it be y = 1?

Answer 5

Vertical lines have equations that say x = some number

Answer 6

And since it is to the left of the origin, I don't think x could be positive.

Answer 7

so x=-1?

Answer 8

yes, it's x = -1. the dashed line is the directrix. VUX - vertical line, undefined slope, x=a number.

Answer 9

thanksssss

Answer 10

np(: