Will give brainliest if both are correct

these are two separate questions that have nothing to do with each other.

find the constant of variation k for the direct variation.

x | f(x)

-1 | 2

0 | 0

2 | -4

5 | -10

a) k = –0.5

b) k = 2

c) k = –1.5

d) k = –2

question 2

does the data in the table represent a direct variation or an inverse variation? write an equation to model the data in the table.

|_2__|__4__|__8__|__12__|

|_4__||__1__|__2/3_|

direct variation; y = 8/x

direct variation; y = 8x

inverse variation; xy = 8

inverse variation; y/x = 8