1. Domain and Range of a Graph

2. Domain The domain of a graph is displayed by the set of all possible x-values or abscissas. In this example, the domain continues to expand in both directions forever. So the domain would be the set of all real numbers ( R ) or (-∞, ∞)

3. Range The range of a graph is displayed by the set of all possible y- values or ordinates. In this example, you can see that the greatest possible ordinate is approximately 8.6. So the range would be y  8.6 or (-∞, 8.6]

4. Domain The domain of a graph is displayed by the set of all possible x-values or abscissas. In this example, you can see that the smallest possible abscissa is -3. So the domain would be x  -3 or [-3, ∞)

5. Range The range of a graph is displayed by the set of all possible y-values or ordinates. In this example, you can see that the greatest possible ordinate is 4. So the range would be y  4 or (-∞, 4]