Question

What are the domain and range of the real-valued function f(x)=2/(x+5)?

Answer 1

Domain is all real numbers, x ≠ -5

Range is all real numbers, y ≠ 0

Explanation:

Answer 2

Domain: all real numbers except x=-5
(-infinity, -5)U(-5, infinity)

Range: all real numbers except y=0
(-infinity, 0)U(0, infinity)