F(x) = a×+b F(3) = 7 F(2)=5 tntukan nilai a dan b
Matematika
wlnrmdhni
Pertanyaan
F(x) = a×+b F(3) = 7 F(2)=5 tntukan nilai a dan b
2 Jawaban
-
1. Jawaban baihaqihakimi
f(x) = ax+b
f(3) = 3a+b=7
f(2) = 2a+b=5
_______–
a =2
f(2) = 2x2+b=5
b=1 -
2. Jawaban sachioatha
f(x) = ax + b f(x) = ax + b
f(3) = a(3) + b f(2) = a(2) + b
7 = 3a + b 5 = 2a +b
7=3a + b
5=2a + b Lalu dikurangin
⇔2=a
5=2a + b
5=2(2) + b
5=4 + b
5 - 4=b
1=b