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
-
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 = - 4
f(x) = 3x - 4