Graphs that involve equations are drawn using all procedure used to draw the graphs of equations. For example when drawing the graphs of linear equations we can use table of values or using x and y intercepts.
The relations involving inequalities are drawn as when drawing equations, the difference is that in graphing inequalities:
- when > or < symbol is used we draw the graph using dotted lines while when >= (greater than or equal) or <= (less than or equal symbol) is used we draw a line using bolded line.
- we normally shade the area satisfying the given relation
- domain and range is found by considering the values of x and y in an area where our graph covers
Graphs of relations
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Oleh
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