Question

Tentukan nilai m jika f(x) = xkuadrat - 8x + m nilai minimumnya 20

Answer 1

Nilai minimum jika y' = 0
2x - 8 = 0
x = 4 dan y = 20
20 = 4² - 8(4) + m
20 = 16 - 32 +m
20 = -16 +m
m = 36