
FUNGSI NAIK DAN FUNGSI TURUN
Presentation
•
Mathematics
•
11th Grade
•
Easy
Mega Maharani
Used 3+ times
FREE Resource
5 Slides • 1 Question
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by Mega Maharani
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Ketika mobil bergerak dari titik A menuju ke titik B, mobil akan bergerak naik hingga sampai puncak, kemudian mobil bergerak dari titik B ke titik C, pergerakan mobil akan turun. Demikian juga ketika bergerak dari titik C ke D, mobil akan bergerak naik.
Deskripsi ini menggambarkan fungsi naik untuk pergerakan dari A ke B, fungsi turun untuk pergerakan dari B ke C.
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Definisi :
Fungsi f(x) disebut fungsi naik pada interval I jika untuk setiap bilangan x1 dan x2 pada I berlaku x1 < x2 berlaku hubungan f(x1) < f(x2)
Teorema :
Jika f'(x) > 0 dalam interval I, maka f merupakan fungsi naik
5
Definisi :
Fungsi f(x) disebut fungsi turun pada interval I jika untuk setiap bilangan x1 dan x2 pada I berlaku x1 < x2 berlaku hubungan f(x1) > f(x2)
Teorema :
Jika f'(x) < 0 dalam interval I, maka f merupakan fungsi turun
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Open Ended
Tentukan selang atau interval dimana f(x) = x3 – 3x2 – 15 merupakan:
a.Fungsi naik
b.Fungsi turun
by Mega Maharani
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