Question

Tolong dijawab yah dengan cara x saya mohon

Answer 1

Verified answer

Bab Fungsi
Matematika SMP Kelas VIII

D = { -3, -2, -1, 0, 1, 2, 3, 4 }

f(x) = x² - 1

f(-3) = (-3)² - 1
       = 9 - 1
       = 8

f(-2) = (-2)² - 1
       = 4 - 1
       = 3

f(-1) = (-1)² - 1
        = 1 - 1
        = 0

f(0) = 0² - 1
      = 0 - 1
      = -1

f(1) = 1² - 1
      = 1 - 1
      = 0

f(2) = 2² - 1
      = 4 - 1
      = 3

f(3) = 3² - 1
      = 9 - 1
      = 8

f(4) = 4² - 1
       = 16 - 1
       = 15

Daerah hasil = { -1, 0, 3, 8, 15 }