The linear equation that relates the cost and the number of of miles driven annually.
Cost = variable cost + fixed cost.
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=dcd36a203fe56c6735da57835d671a07.png\")
and the number of ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8da2268e35b6b6daab9c47f71c4c8bf4.png\")
of miles driven annually. and the number of of miles driven annually.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=79954ccea6ae036ef90cb93ce1c74fde.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=79954ccea6ae036ef90cb93ce1c74fde.png\")
.