

Rumus Fungsi
Presentation
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Usman Nuryanto
Used 9+ times
FREE Resource
5 Slides • 4 Questions
1
Rumus Fungsi
Materi Bab III kelas VIII sem.1

2
Bentuk Umum Fungsi Linier adalah
f(x) = ax + b
Contoh soal: diktahui suatu fungsi f : x -- 5x -3
a.Tentukan rumus fungsinya!
b.Tentukan nilai x jika f(x) = 12
jawaban a. f(x) = 5x-3
b. f(x) = 12 maka f(x) = 5x-3
12 =5x-3 <=> 12+3 = 5x
5x =15 <=> x = 15:5 maka x = 3
3
Multiple Choice
Suatau fungsi dinyatakan dengan f(x) = 4-2x, Jika f(a) = 0 maka nilai a dalah ....
1
2
3
4
4
Bagaimana menyelesaikan soal tersebut?
5
6
7
Multiple Choice
Suatu fungsi dinyatakan dengan rumus f(x) = ax +b. Jika f(2)= 5 dan f(-2) = -7, maka nilai dari f(0) adalah ....
-1
-2
1
2
8
Multiple Choice
Diketahui f (x) = ax + b , jika f (1) = -3 dan f (0) = -1 maka nilai a dan b berturut-turut adalah....
-1 dan -2
-2 dan -1
1 dan 2
2 dan 1
9
Multiple Choice
Diketahui f (x) = ax + b , jika f (2) = 9 dan f (0) = 3 Maka rumus fungsinya adalah....
f(x) = 2x +3
f(x) = 3x +2
f(x) = 3x + 3
f(x) =2x+2
Rumus Fungsi
Materi Bab III kelas VIII sem.1

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