![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
\
The table is
\\
\
\
\
| \
x \ | \
\
0 \ | \
\
1 \ | \
\
2 \ | \
\
3 \ | \
| \
y \ | \
\
75 \ | \
\
65 \ | \
\
55 \ | \
45 | \
\
Observe the table; value of y is decreasing by 10 as x value increasing by one.
\![\"\"](\"/userfiles/image/Library/initial%20valu_38_19.gif\")
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Write a verbal model for the current situation:
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a933cc38568b0b0c57d7624fc0195eef.png\")
\
The equation of y is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0dabf6710d66ec98c713f2d5ad138069.png\")
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The equation of y is ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0dabf6710d66ec98c713f2d5ad138069.png\")