I NEED HELP PLEASE, THANKS! :)

x = 6.

Step-by-step explanation:

The general form is r = ep / (1 + e cos Ф)

where e is the eccentricity, p is the  distance of the directrix from the focus.

Changing  our formula to the above we divide top and bottom by 4:

r = (26.4)/ 4 /  (4/4 + 4.4/4 cos Ф)

r = 6.6 / (1 + 1.1 cos Ф)  

e is > 1 so we have an hyperbola here.

e = 1.1 and ep = 6.6

giving p = 6.6 / 1.1 = 6.

The equation of the directrix is x = 6.

i would say the third one.

step-by-step explanation: liner would mean in a line and the only one that doesn't look like it's even thinking about forming a line would be the third one