Given,
The graph of the function is shown in the question.
Required
The velocity of the object between t = 0 to t = 15.
The velocity of the object is,
[tex]\begin{gathered} Velocity=\frac{7-1}{15-0} \\ =\frac{6}{15} \\ =\frac{2}{5} \\ =0.4\text{ ft/sec} \end{gathered}[/tex]
Hence, the velocity of the object is 0.4 ft/sec.
