Question

Jika fungsi f didefinisikan f(x) = 3x - 1, nilai f(2) - f(-2) adalah...

Answer 1

F(2) = 3(2) - 1 = 5
f(-2) = 3(-2) - 1 = -7
f(2) - f(-2) = 5 - (-7) = 12

Answer 2

F(2) = 3 (2) -1
       = 6-1
       = 5
f(-2) = 3 (-2) -1
       = -6-1
       = -7
nilai f(2) - f(-2) = 5 -(-7)
                           = 5 + 7
                           = 12