Question

Given the domain {-2, 1, 5}, what is the range for the relation 4x + y = 3?

Answer 1

Explanation:

Domain is the set of all possible inputs (x) for the function f(x)

The range is the set of all possible values for that domain

This function is 4x + y = 3 which can be re-written as y = 3-4x

Plug in each of the domain values and you will get the range

For -2 : y = 3-4(-2) = 3 + 8 = 11

For 1: y = 3-4(1) = -1

For 5: y = 3-4(5) = -17

So range is {-17, -1, 11}