Finding the rate of a tax or commission The sales tax for an item was $11.70 and it cost $390 before tax.
Find the sales tax rate. Write your answer as a percentage.
1%
Х
?

  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.

what shape is