Answer:
6 srry if dis is wrong sis
Step-by-step explanation:
since the radius is 12 divide that by 2 and you get 6 which is the diameter.
so im guessing the answer is 6 idk i haven't done this inna min. i hope this was helpful <3
In this problem, given the focus at (2,4) and directrix at y = 8. then it is implied that the parabola is facing downwards. The vertex hence is at the middle of the focus and the directrix, hence at (2, 6). The general formula of the parabola is y-k = -4a ( x-h)^2. Substituting, y -6 = -1/8 *(x-2)^2. Answer is A.
X=-9
subtract 6x from both sides to get x alone as -1x, subtract 2 from both sides to balance. -1x=9, or 1x=-9
