Question

considere a função f (×)=-2×+1 A soma f (0)+ f (2) +f(-1)+f (5)e

Answer 1

f(0) = -2(0) + 1 = -2.0 + 1 = 0 + 1 =1

f(2) = -2(2) + 1 = -2.2 + 1 = -4 + 1 =-3

f(5) = -2(5) + 1 = -2.5 + 1 = -10 + 1 = -9

f(-1) = -2(-1) + 1 = -2.-1 + 1 = 2 + 1 = 3 

1 + (-3) + 3 + (-9) =

1-3+3-9 = -8