Respuesta :
To find the book value of the computer after 3 years we must evaluate the V(3), then, if
[tex]V(x)=3200-800x[/tex]The V(3) will be
[tex]\begin{gathered} V(3)=3200-800\cdot3 \\ \\ V(3)=3200-2400 \\ \\ V(3)=800 \end{gathered}[/tex]The value of the computer after 3 years will be 800.
To find the value year where the book will value 2400, we must put V(x) = 2400 and solve the equation for x, then
[tex]\begin{gathered} V(x)=3200-800x=2400 \\ \\ \begin{equation*} 3200-800x=2400 \end{equation*} \\ \\ 800x=800 \\ \\ x=1 \end{gathered}[/tex]Then, after 1 year the computer will value $2400
