A defines the function
f(1) = - 8 ×( [tex]\frac{5}{2} )^{0}[/tex] = - 8 × 1 = -8
f(2) = - 8 ×( [tex]\frac{5}{2}) ^{1}[/tex] = - [tex]\frac{(8.5)}{2}[/tex]= - 20
f(3) = - 8 ×( [tex]\frac{5}{2}) ^{2}[/tex] = - 8 × [tex]\frac{25}{4}[/tex] = - 50
f(4)= - 8 ×( [tex]\frac{5}{2}) ^{3}[/tex] = - 8 × [tex]\frac{125}{8}[/tex] = -125
f(5) = - 8 ×( [tex]\frac{5}{2}) ^{4}[/tex] = - 8 × [tex]\frac{625}{16}[/tex] = - [tex]\frac{625}{2}[/tex]
