Question

Diketahui fungsi f(x)=ax+b.tentukan bentuk fungsi f jika f(3)=6 dan f(2)=5 piliss bantu sekalian cara nya besok diantar

Answer 1

F(1)=a.1 + b =3
= a + b = 3
f(2)= a. 2 + b = 5
= 2a + b = 5
jadi f(x)= 2x + 1

baru aja ku kerjain tadi

Answer 2

F(x) = ax+b  f(x)= 1.x+3
f(3)= a.3+b = 6
f(2)= a.2+b = 5
>> 3a+b = 6
     2a+b = 5
  __________ -
        a = 1
>> f(3) = 1.3+b = 6
             = 3+b = 6
       b   = 3
>> f(3) = 1.3+3 = 6
>> f(2) = 1.2+3 = 5