Question

Fungsi f dinotasikan dengan f : x → x² - 2x. Jika daerah asal adalah A = (-2, 0, 2, 4), Maka daerah hasilnya adalah

Answer 1

Verified answer

F(x)=x²-2x
f(-2)=(-2)²-2(-2)=4+4=8
f(0)=(0)²-2(0)=0
f(2)=2²-2(2)=0
f(4)=4²-2(4)=16-8=8

daerah hasil {0,8}

Answer 2

Verified answer

F : x → x² - 2x
f(x) = x² - 2x

A = domain = {-2, 0, 2, 4}

f(-2) = (-2)² - 2(-2) = 4 - (-4) = 4 + 4 = 8
f(0) = (0)² - 2(0) = 0 - 0 = 0
f(2) = 2² - 2(2) = 4 - 4 = 0
f(4) = 4² - 2(4) = 14 - 8 = 8

Daerah hasil/Range = {0, 8}