f (x) =ax+b f (1)=7 f (-1)=3 tolong bantuannya
Matematika
devi938
Pertanyaan
f (x) =ax+b
f (1)=7
f (-1)=3
tolong bantuannya
f (1)=7
f (-1)=3
tolong bantuannya
1 Jawaban
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1. Jawaban Anonyme
Bab Fungsi
Matematika SMP Kelas VIII
f(x) = ax + b
f(1) = a + b = 7
f(-1) = -a + b = 3
........--------------- -
................2a = 4
...................a = 2
a + b = 7
2 + b = 7
b = 7 - 2
b = 5
f(x) = 2x + 5