2)
Given data:
The given distance is d= 4/5 miles.
The given time is t = 1/5 hours.
The speed can be calculated as,
[tex]\begin{gathered} s=\frac{d}{t} \\ =\frac{(\frac{4}{5}\text{ miles)}}{\frac{1}{5}\text{ hour}} \\ =4\text{ miles/hour} \end{gathered}[/tex]
The expression for the distance in x hours is,
[tex]y=4x[/tex]
Thus, the expression for the distance is y=4x.
