The given function is
.
Number of miles cannot be zero, the excluded value is
.
\
| \
x \ | \
\
| \
\
0 \ | \
\
5 \ | \
\
10 \ | \
| \
y \ | \
\
| \
\
| \
\
8 \ | \
\
4 \ | \

The graph of the function
.
