matematika kelas 8 tentang fungsi, ADA *5 & jawaban terbaik loh !! tolong ya kakak 5. diketahui suatu fungsi dengan notasi f : x →3, untuk x ∈ bilangan ganjil d

f(x) = 3 -> utk x bil gnjl
f(x) = 1/2x + 1 -> utk bil gnp

Domain = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

a.
Prima = 2, 3, 5, 7

f(2) = 1/2(2) + 1 = 1
f(3) = 1/2(3) + 1 = 5/2
f(5) = 1/2(5) + 1 = 7/2
f(7) = 1/2(7) + 1 = 9/2

R = { 1 , 5/2 , 7/2 , 9/2}

b.
Bil faktr dr 6 = {1, 2, 3, 6}

f(1) = 1/2(1) + 1 = 3/2
f(2) = 1/2(2) + 1 = 1
f(3) = 1/2(3) + 1 = 5/2
f(6) = 1/2(6) + 1 = 4

Himp. psng berurut = {(1, 3/2), (2, 1), (3, 5/2), (6, 4)}