Question

y varies inversely with twice the value of x. When y = 8, x = 2. Find y when x = 8.

Answer 1

well x is 1/4 of y
so 8 x 4 :)

Answer 2

Have I failed you Calli?! D:

Answer 3

Hmmm... I don't know
y α 1/2x
2xy = k
\(2x_1y_1 = 2x_2y_2\)
\(2(2)(8) = 2(8)y\)
y = ...
Now I'm confused...

Answer 4

so y would be 4? :|

I failed you :( lol

Answer 5

No...

Answer 6

Seems I failed myself. I got 2. But.. not sure...

Answer 7

lol 2 I'm a retard wait 32=16?

Answer 8

2 x 2 x 8 = 2 x 8 x y
32 = 16y
y = 32/16 = 2

Answer 9

y=k/(2x)
Put y=8 and x=2,
k=32
then
y=32/(2x) = 16/x
put x=8,
y=2

Answer 10

Thanks!!!!

Answer 11

you are welcome :D