4. The bus and the train left the same town headed south at 8 a. m. At noon, the bus was 100 miles behind the train. How far did each one travel if the speed of the train was twice the

speed of the bus?

  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.

can you post a picture or something

the answer is b to that question