Diketahui fungsi f(x) = 3×2 – 2x – 5. Nilai f(1/2) =

jawaban :

f(x)= 3x² -2x -5
f(1/2) = 3(1/2)² – 2(1/2) – 5
= 3(1/4 ) – 1-5
= 3/4 – 6 = – 21/4