![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The equation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=11ec1f7ce6fd26ee0bb38c06d66ff9e2.png\")
.
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=60894939d8315941378e76034c8322fa.png\")
(Add 4x to each side)
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=37b656dbd11b7b635e9be38f9e07404d.png\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ee0262d057ee2e3367354e6da429d6e1.png\")
(Divide each side by 3)
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e2acb6452fdfa4ced7a0387edc695905.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step2.JPG\")
Apply linear equation formula: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5119d66932503625a5880e3d60dfa189.png\")
, where m and b are real numbers.
No, the above equation is not a linear function.
\Because the two same variables are multiplied together.
\![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
Yes, the above equation is a linear function.