28/21 = 42/x solve for x
a: 14
b: 18 2/3
c: 31 1/2
d: 56
i cant figure out what it is, and im slightly confused

answer: a.   one is a factor of every whole number since every number is divisible by itself.

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.