Question

Jika fungsi f(x)=4-2x dengan domain {1,2,3}, maka rangenya adalah

Answer 1

F(1) = 4-2(1) = 4-2 = 2
f(2) = 4-2(2) = 4-4 = 0
f(3) = 4-2(3) = 4-6 = -2

range = {-2,0,2}