jika f(x) = ax + b, f(1) = -1, f(3) = 5, maka...
Matematika
ryuta131
Pertanyaan
jika f(x) = ax + b, f(1) = -1, f(3) = 5, maka...
1 Jawaban
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1. Jawaban fatimah3085
f(x) = ax + b
f(1) = a + b = - 1
f(3) = 3a + b = 5
-----------------------(-)
- 2a = - 6
a = 3
a + b = - 1
3 + b = - 1
b = - 1 - 3 = - 4
f(x) = 3x - 4