\
The situation is “5 seconds before liftoff”.
The word before indicates negative, the symbol is “”
The equation represents the current situation is 5.
Locate the integer “5” on the number line.
The graph is,
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c7a8c800d2df7d176b09fff75181eb8f.png\")
”5. 5” on the number line.![\"number](\"/userfiles/image/Library/Pre_Algebra/number_line_diagram_5_seconds_before_leftto_off.gif\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")