tolong di jawab soal nya
Materi : Fungsi dan Relasi
f(x) = x² + ½x - 3
x = { -4, -2, 0, 4, 6, 8 }
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x = -4
f(-4) = (-4)² + ½(-4) - 3
f(-4) = 16 - 2 - 3
f(-4) = 16 - 5
f(-4) = 11
x = -2
f(-2) = (-2)² + ½(-2) - 3
f(-2) = 4 - 1 - 3
f(-2) = 4 - 4
f(-2) = 0
x = 0
f(-2) = 0² + ½(0) - 3
f(-2) = 0 + 0 - 3
f(-2) = -3
x = 4
f(4) = 4² + ½(4) - 3
f(4) = 16 + 2 - 3
f(4) = 18 - 3
f(4) = 15
x = 6
f(6) = 6² + ½(6) - 3
f(6) = 36 + 3 - 3
f(6) = 36 + 0
f(6) = 36
x = 8
f(8) = 8² + ½(8) - 3
f(8) = 64 + 4 - 3
f(8) = 64 + 1
f(8) = 65
Hasil / Result :
Daerah Hasil = { -3, 0, 11, 15, 36, 65 }
Semoga bisa membantu
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