Step 1: group Y on left side
(-2 - 3)y = -5y
step 2: group constants on left side
8 - 9 = -1
step 3: form modified equation
-5y - 1 = 11
step 4: group constants
-5y - 1 + 1 = -11 + 1
step 5: cancel 1 on left side
-5y = -10
step 6: divide each side by -5
-5y/-5 = -10/-5
answer: y = 2
Y=1/16x^2
multiplying both sides by 16 we get:
16y=x^2
The general form of a parabola is:
(x-h)^2=4p(y-k)
thus
4p=16
p=4
The parabola opens upwrd:
Focus: (h,k-p)
(0,0-4)
=(0,-4)
Directrix: y=-4
The answer would be C) The volume is the same in both cylinders
Answer:

Step-by-step explanation:
steps are in the pictures.
I attached 3 pictures.
I hope it helps.