![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
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First draw a table with two columns and list the x-coordinates in the first column and y-coordinates in the second column.
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x \ | \
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y \ | \
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1 \ | \
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4 \ | \
| \
2 \ | \
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8 \ | \
| \
3 \ | \
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12 \ | \
| \
4 \ | \
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16 \ | \
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![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Draw a coordinate plane and plot the pairs![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b1d1d91d9370db366e10dd1e01fbcbe9.png\")
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The domain of the relation is the set of x-coordinates. The range of the relation is the set of y-coordinates.
\The domain of the relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c73d293867eed07de03e66c3c3f5490e.png\")
The range of the relation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=03679a5a8b6a880d2448fcfb3bfe21f0.png\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The domain of the relation is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c73d293867eed07de03e66c3c3f5490e.png\")
The range of the relation is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=03679a5a8b6a880d2448fcfb3bfe21f0.png\")