What is the set of all x-coordinates of a relation?

Is it domain?

Yes, and in general y is range

You are welcome.

Thanks

Yes, you are correct! The set of all x-coordinates in a relation is called the domain. The domain of a relation is essentially the set of values that the input, or x-coordinate, can take. To find the domain of a relation, you need to look at the x-coordinates that are present in the relation.

If the relation is given explicitly, such as in a table or equation, you can simply extract the x-values to determine the domain. For example, if the relation is given as a table with x and y values, you can directly take the set of x-values. If the relation is given as an equation, you should consider any restrictions on the x-values, such as division by zero or square roots of negative numbers, as these may limit the domain.

If the relation is defined implicitly or given as a graph, you would need to consider the entire range of x-values present in the relation. This means you should identify the lowest and highest x-values shown on the graph or deduce any possible values based on the characteristics of the relation.

In summary, the set of all x-coordinates in a relation is known as the domain, and finding the domain depends on how the relation is presented, either explicitly or implicitly.