![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The equation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a938ac1792222a2d5cf33d7cb6a0cc98.png\")
.
Rewrite the equation is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9d4c7176b18554361381444edac1789d.png\")
.
Since, ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1ec76df660c5cb0f1700c9f5b86a9f9e.png\")
varies directly as ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=397fa06c87524875a08b8582b661eb47.png\")
and ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e7e45144a5880b09f4ba35ecfa2e0a2b.png\")
.
Find the which type of variation.
\The quotients of ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=77870e56dd12c3adcda3018b2a73942b.png\")
represent constant value, then it represents the joint variation.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The equation represents the joint variation. \ \