Question

I don't understand how to find the domain and range of the relation from a graph. I follow how to get it from sets of ordered pairs.I follow the black dot as (-2,-1) and the end dot is (-3,-3). The x is infinity and y = -1 but from the options I don't get 3 I only see -3 so I'm confused.

Answer 1

From the graph given

Where each box represents 1 unit,

The domain of the relation is the set in which all of the inputs fall

The domain of the graph is

`(-\infty,3)`

The range of a relation is second coordinates and the range of the graph given is

`(-\infty,-1\rbrack`

Hence, the domain and range on the graph are

`\begin{gathered} \text{Domian}\Rightarrow(-\infty,3) \\ \text{Range}\Rightarrow(-\infty,-1\rbrack \end{gathered}`