What must you assume when you use a rate to make a prediction?

You must assume that all events related are gonna follow the rate.

For example, if a tank is being filled 100 gallons per minute, you must assume that the rate is always the same, and that all variables are following this rate, otherwise you wouldn't have a good prediction.

Now, in real world, rates are only approximations, because there's always another variable which is gonna make some changes in the rate of change.

So, when you use a rate for predicitions, you assume that all other variables doesn't affect events that much to miss to hard the predicition as such.

the 4th choice is the correct one

step-by-step explanation:

  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.