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

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

f(4) = -4+3 = -1

dik:f (x)=ax+3
f (1)=2
dit:f (4)=...
jwb =f (x)=ax+3
f (1)=a.1+3=2
=a=2-3
a=-1
cari f (4)
f (x)= ax+3
f (4) =-1.4+3
=-4+3
=-1