Question

Write a function rule for the table

Answer 1

For this case we must construct a function of the form
`y = f (x)` taking as reference the values of the table.

It is observed that if we evaluate the following function we have:

`f (x) = x + 4`

Different signs are subtracted and the sign of the major is placed.

`f (-3) = - 3 + 4 = 1\\f (-2) = - 2 + 4 = 2\\f (-1) = - 1 + 4 = 3\\f (0) = 0 + 4 = 4`

So, the function is:
`f (x) = x + 4`

Answer:

`f (x) = x + 4`