Question

I need help with questions 5 and 6 the one with the graph?

Answer 1

From the table it can be seen that when r=3, V(r=3) =113

On the other hand, when r=7, V(r=7)=1436 and when r=2, V(2)=33.5, therefore,

$\begin{gathered} V(7)-V(2)=1436-33.5 \\ =1402.5 \end{gathered}$