We find the domain by finding all real inputs inputs (x-values) that result in real outputs outputs (y-values). Step 2 The domain includes all real numbers except 1. values that result in a denominator of ---Select--- and 2. values that result in an even root of ---Select--- For the function y = x + 8 there are no such restrictions on the domain. When there are no restrictions, the domain of a function consists of all real numbers because there are no exclusions. The inputs come from all values on the real number line which span from negative infinity to positive infinity. Enter the domain of the function y = x + 8 using interval notation.