Q 2.

Question

Explain why Definition 0.2 is not general enough to define the domain or range of a function of two or three variables.

Step-by-Step Solution

Verified
Answer

Each combination of real numbers (x, y) in the domain of a function f of 2 different variables is assigned a real number f(x, y).

1Step 1. Given information

Term "function" is given.

2Step 2. Explanation

A function from a set A to set B is an assignment f that associates to each element x of the domain of set A  exactly one element f(x) of the codomain or target set B

Each combination of real numbers (x, y) in the domain of a function f of 2 different variables is assigned a real number f(x, y).

The values whereby the behavior is described are referred to as a domain. A range is defined as the set of values that the function accepts.