tentukan fungsi dari: 1.) f(×)=a × +3 f(-1)=1 2.)f(×)=a×-b f(2)=5 f(-1)=1 tolong jawab segera yaa terimakasihh mau di kumpul nanti

1. F(×) = a× + 3
F(-1) = - 1a + 3 = 1
-1a = 1-3
- 1a = - 2
a = - 2 / - 1
a = 2

2. F(×) = ax + b
F(2) = 2x + b =5
F(-1) = - 1x + b =1
Dikurangi
3x = 4
X =4/3

2x + b = 5
2 4/3 + b = 5
10/3 + b = 5
b = 5/1 - 10/3 samakan penyebutnya
b = 15/3 - 10/3
= 5/3
Sorry kalo salah. Tp insyaallah bner kok