This week in Math 10 I learned how to identify special points on a graph to find a domain and range. Domain equals the X points on the graph and the Y points are the range.

once I learned how to identify coordinates on the graph, I was able to start finding nice points on line graphs of functions and relations, linear and non linear lines. However these relations are usually continuous, meaning we don’t know when they end on the graph, so we use the infinity symbol.

The points on a graph have a lot to do with how you read and write you domain and range

a dot or filled dark circle represent to be equal to or greater than the number to it’s right uses [.  ] brackets

an open circle equals not equal to and greater to the number on its right. Uses (.   ) brackets

infinity symbol means it goes on forever or there is an arrow at the end of the line uses (.   ) brackets