First we need to know in one mile how much time he spend
6 mile ---- 48 min
1 mile ---- x
[tex]x=\frac{1\cdot48}{6}=8[/tex]
1 mile ----- 8 minutes
this relation we must find it in the graph
and the line needs to start in 0,0
so with this in mind the only graph that starts in (0,0) and have a point in (8,1) is G
