I am having trouble with Input output for this problem, I can't figure out the function rule

input x= output y=
2 1
3 0
4 -1
Please Help!

As the input increases 1, the output decreases 1.

To find the function rule for this problem, you need to identify the relationship between the input values (x) and the corresponding output values (y).

Looking at the given input and output values:

x = 2, y = 1
x = 3, y = 0
x = 4, y = -1

It seems that for each value of x, the corresponding value of y decreases by 1.

So, the function rule can be written as y = x - 3.

To verify this function rule, substitute the given x values into the equation and check if the corresponding y values match the given output values.

For x = 2, y = 2 - 3 = -1
For x = 3, y = 3 - 3 = 0
For x = 4, y = 4 - 3 = 1

As you can see, the calculated y values match the given output values. Therefore, the function rule y = x - 3 correctly relates the input values to the output values in this problem.