Fungsi F dari x ke 4 x-2. a)tentukan rumus fungsi b)tentukan bayangan (daerah hasil) dari 2,-2,4,-4,½,2½ c)jika 8 bayangan p, tentukan p mohon di jawab y :)

a) f(x) = 4x - 2
b) f(2) = 4.2 - 2 = 8 - 2 = 6
f(-2) = 4.-2 - 2 = -8 - 2 = -10
f(4) = 4.4 - 2 = 16 - 2 = 14
f(-4) = 4.-4 - 2 = -16 - 2 = -18
f(1/2) = 4.1/2 - 2 = 2 - 2 = 0
f(2 1/2) = 4.2 1/2 - 2 = 10 - 2 = 8
c) f(x) = 8
4x - 2 = 8
4x = 8 + 2
4x = 10
x = 10/4 = 2 1/2