Question

Tentukan daerah hasil dari pemetaan f(x)=2(-3x+4) dari himpunan A={-4,-3,-2,-1,0,1,2,3} ke himpunan B!

Answer 1

Verified answer

F(x) = 2(-3x+4)
daerah asal = { -4,-3,-2,-1,0,1,2,3}
daerah hasil = ....

f(-4) = 2(-3(-4)+4)
=2(12+4)
=2.16
=32

f(-3) = 2(-3(-3)+4)
=2(9+4)
=2.13
=26

f(-2) = 2(-3(-2)+4)
=2(6+4)
=2.10
=20

f(-1) = 2(-3(-1)+4)
=2(3+4)
=2.7
=14

f(0) = 2(-3(0)+4)
=2(0+4)
=2.4
=8

f(1) = 2(-3(1)+4)
=2(-3+4)
=2.1
=2

f(2) = 2(-3(2)+4)
=2(-6+4)
=2.-2
=(-4)

f(3) = 2(-3(3)+4)
=2(-9+4)
=2.-5
=(-10)

daerah hasil = {32,26,20,14,8,2,-4,-10}

semoga membantu yaa
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