tolong dibantu pelajaran matematika

Mapel : Matematika

Kelas : 8

Bab : Relasi dan Fungsi
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g(x) = 2x - 7/ax + 8

g(-1) = -3

Ditanya → a + 2

Jawaban :

2x - 7/ax + 8 = -3

2(-1) - 7 = -3[a(-1) + 8)]

-2 - 7 = 3a - 24

-9 + 24 = 3a

15 = 3a

15/3 = a

5 = a

Maka,

= a + 2
= 5 + 2
= 7 ✔