![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The table is average height in centimeters of a teenage boy.
\| \
Age \ | \
\
13 \ | \
\
14 \ | \
\
15 \ | \
\
16 \ | \
\
17 \ | \
\
18 \ | \
| \
Height(cm) \ | \
\
156 \ | \
\
163 \ | \
\
170 \ | \
\
173 \ | \
\
175 \ | \
\
176 \ | \
From the table age increases by 1, Height changes by a different amount each time.
\So, this is a nonlinear function.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
It represents a nonlinear function.