Question

Suatu fungsi : x → 3x² - 1, daerah asal f = (-1,0,1,2) range dari fungsi tersebut adalah......

Answer 1

F(x) = 3x² - 1
~ f(-1) = 3(-1)²- 1
           = 3 -1
           = 2

~ f(0) = 3(0) - 1
          = 0 -1
          = -1

~ f(1) = 3(1) -1
          = 3 - 1
          = 2

~ f(2) = 3(2) -1
          = 6 -1
          = 5

maaf kalo salah..