During a certain 9-year period, the consumer price index (cpi) decreased by only 4%, but during the next 9-year period, it decreased by 15%. which of these conditions must have existed during the second 9-year period?

  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.

2x^2+5x+17

your welcome. : )

$6.42

step-by-step explanation: