Suatu fungsi di rumuskan f(x) =7 – x dengan daerah asal {–2, –1, 0, 1, 2, 3}.Tentukan daerah hasil fungsi tersebut

Jawaban:

daerah hasil/Range = {9,8,7,6,5,4}

Penjelasan dengan langkah-langkah:

f(x) = 7 – x

daerah asal = {-2,-1,0,1,2,3}

daerah hasil =

f(-2) = 7 – (-2)

= 9

f(-1) = 7 – (-1)

= 8

f(0) = 7 – (0)

= 7

f(1) = 7 – (1)

= 6

f(2) = 7 – (2)

= 5

f(3) = 7 – (3)

= 4

daerah hasil = {9,8,7,6,5,4} ✓