jika f(x) = ax + b dan (fof)(x) = 16x - 15 maka nilai a + b = tolong dijawab yah bsok dikumpul... jwbx jangan asal - asalan.. cukup yang tau aja

fof = f (ax + b)
= a(ax + b) +b
= a^2x + ab + b = 16x - 15
a^2 = 16
a = akar 16 = 4
ab + b = -15
4b + b = -15
5b = -15
b = -15/5
b = -3

memcari nilai a
f(x)=ax+b
f(16)=16a+b=-15
f(-15)=-15a +b=16
= 31a =-31
jadi nilai a=31:-31
=-1
mencari nilai b
f(x)=16x+b=-15
=16(-1)+b=-15
=-16+b=-15
b=-15+16
b=1

jadi a+b =
(-1)+(1)
=0


semoga bermanfaat