Suatu fungsi linear didefinisikan dengan f(x) =-5×-4.Nilai f(-3)+f(4) adalah..

f(-3) = -5(-3) -4
f(-3) = 15 -4
f(-3) = 11

f(4) = -5(4) -4
f(4) = -20 -4
f(4) = -24

f(-3) + f(4)
= 11 -24
= -13