September 2018 0 149 Report
Daerah asal fungsi kuadrat f(x) = -2x2
+ 4x + 3 adalah himpunan A = {x |-2
≤ x ≤ 3, x ∈ R . Tentukan daerah hasil
fungsi f !

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natassyani
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Jawaban paling cerdas!
F(x) = -2x² + 4x + 3  df { x/ -2 ≤ x ≤ 3 ,x∈ R} sumbu simetri x = 1
f(-2) = -2(-2)² + 4(-2) + 3
       = -2 . 4 - 8 + 3
       = -8 - 8 + 3
       = - 13
f(1) = -2(1)² + 4.1 + 3
      = - 2 + 4 + 3
      = 5
daerah hasil {x/ -13 ≤ x ≤ 5 ; x ∈ R }

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