Jawabanmu

2014-03-18T14:46:50+07:00
Misalkan S = ax + b

f(x) = S
f(x) = ax + b

f(4) = 4a + b
-14 = 4a + b .... (1)
f(1/2) =  \frac{1}{2} a + b
 \frac{7}{2}  \frac{1}{2} a + b ....(2)

eliminasi (1) dan (2) diperoleh a = -5 dan b = 6
jadi S = -5x + 6

CMIIW :3