Table of Contents

## What is the domain of X values?

The domain is the set of all possible x-values which will make the function “work”, and will output real y-values.

## What is X called in domain?

A domain is part of a function f if f is defined as a triple (X, Y, G), where X is called the domain of f, Y its codomain, and G its graph. A domain is not part of a function f if f is defined as just a graph.

**Are X values called domain?**

The domain of a function is the set of input values, x , for which a function is defined.

### What is the domain of X X?

We therefore say that the natural domain of the functions y=x+2, y=3×2−7, y=sinx and y=2x is the set of all real numbers, denoted by R. On the other hand, for the function y=1x, we cannot substitute x=0; the set of allowable values of x is all non-zero reals….Definition.

Function | Domain | Range |
---|---|---|

y=log2x | {x:x>0} | R |

### What is the range function?

The range of a function is the set of all output values (Y-values).

**What is difference between domain and codomain?**

Speaking as simply as possible, we can define what can go into a function, and what can come out: domain: what can go into a function. codomain: what may possibly come out of a function. range: what actually comes out of a function.

#### What is another name for domain in math?

The set “A” is the Domain, The set “B” is the Codomain, And the set of elements that get pointed to in B (the actual values produced by the function) are the Range, also called the Image.

#### What is the domain of X X 1?

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. The range is the set of all valid y values. Use the graph to find the range.

**What is the rule for input and output?**

An input-output table, like the one shown below, can be used to represent a function. Each pair of numbers in the table is related by the same function rule. That rule is: multiply each input number (x-value) by 3 to find each output number (y-value).