From the double number line
When
Time = 0 hour, Distance = 0km
When
Time = 1 hour, Distance = 70km
When
Time = 2 hours, Distance = 140km
From these values, we can deduce that
[tex]D=70T[/tex]
Therefore, when
T = 14 hours
[tex]D=70(14)[/tex]
This gives
[tex]D=980\operatorname{km}[/tex]
Therefore,
The distance covered in 14 hours is 980 km
