Ajay is on the swim team. He improved his time on the 50-yard freestyle from 32 seconds to 31 seconds.
What's the percent decrease in his time?

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.

17 1/3

step-by-step explanation: