1. Determine the place value (weight) of each digit in a five-digit number in base-8 (octal). 2. Use your results for the previous problem to convert the octal number 4718 to decimal.

  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.

47 - 90 = 43

43 - 180 = x

x = 137