Domain And Range Graph With Arrows

X all real numbers remember to focus on left to right of the graph to determine the domain for a continuous graph notice that this graph has an arrow on the left side of the graph and an arrow on the right side of the graph.

Domain and range graph with arrows. The vertical extent of the graph is all range values latex 5 latex and below so the range is latex left mathrm infty 5 right latex. Notice that this graph has one endpoint at 0 0 and an arrow to the right indicating that it continues forever in the positive x direction. The domain and range are all real numbers because at some point the x and y values will be every real number.

Note that the domain and range are always written from smaller to larger values or from left to right for domain and from the bottom of the graph to the top of the graph for range. The line and function to the left has a domain and range of all real numbers because as the arrows indicate the graph goes on forever both negatively and positively. Keep in mind that if the graph continues beyond the portion of the graph we can see the domain and range may be greater than the visible values.

Example 2 a continuous graph with only one endpoint so continues forever in the other direction example 3 a continuous graph that has two arrows. Remember to focus on left to right of the graph for domain of a continuous graph. Because the domain refers to the set of possible input values the domain of a graph consists of all the input values shown on the latex x latex axis.