Diketahui f(x)= ax+3 dan f(1) =2. nilai f(4)=.... mohon dibantu kaaak.. wassalaam:)

Question

Matematika Diposting : 2014-10-15 Diupdate : 2022-09-01 salsacp

Pertanyaan

Diketahui f(x)= ax+3 dan f(1) =2. nilai f(4)=....

mohon dibantu kaaak..

wassalaam:)

Answer 1

f(x) = ax+3
f(1) = a+3
2 = a+3
a=-1
f(x) = -x+3
f(4) = -4 + 3 = -1

Answer 2

a=-1 , karena f(1)= a*1+3=2 , 3+1*.....=2 , 3+1*-1=2
f(4)=-1*4+3
= -4+3= -1