Me i beg you

if y varies inversely as x, find the constant of variation if y = 36 when x = 9.
27
14
324
4

write an appropriate direct variation equation if y = 30 when x = -10.
y = -300x
y = 300x
y = -3x
y = 3x

write an appropriate direct variation equation if y = 14 when x = -14.
y = 14x
y = -14x
y = x
y = -x

if y varies inversely as x, and y = 4 as x = 8, find y for the x-value of 2.
16
10
8
14