Range dari f(x)=2/3x-5 dengan domain {-6,-3,0,3,6} adalah

Jawab :

f(x) = 2/(3x - 5)

Domain............Range
x...........................f(x)
-6......................2/(3.-6 - 5) = 2/-23 = -2/23
-3......................-2/14 = -1/7
0.......................-2/5
3........................2/4 = 1/2
6........................2/13

Range dr f(x) = 2/(3x - 5)
Rf = {-2/23 , -1/7 , -2/5 , 1/2 , 2/13}