# Math - Function ?

by Emone Vinson
(Houston, Tx)

Which rule can be used to represent the relationship between input and output as shown in this table?

Input (x) Output (y)
0 -2
1 -1
2 0
3 1

### Comments for Math - Function ?

 Dec 29, 2011 Rule for Input-Output by: Staff Question: by Emone Vinson (Houston, Tx) Which rule can be used to represent the relationship between input and output as shown in this table? Input (x) Output (y) 0 -2 1 -1 2 0 3 1 Answer: The input-output rule for the relationship between x and y for the table of values shown is: y = x - 2 ----------------------------------------------- check the input-output rule: if x is 0, what is y ? y = x - 2 y = 0 - 2 y = -2 if x = 0, y = -2: these x-y values match row 1 of the table if x is 1, what is y ? y = x - 2 y = 1 - 2 y = -1 if x = 1, y = -1: these x-y values match row 2 of the table if x is 2, what is y ? y = x - 2 y = 2 - 2 y = 0 if x = 2, y = 0: these x-y values match row 3 of the table if x is 3, what is y ? y = x - 2 y = 3 - 2 y = 1 if x = 3, y = 1: these x-y values match row 4 of the table Thanks for writing. Staff www.solving-math-problems.com