Jawabanmu

2014-05-01T15:31:09+07:00
F(x) = -2x + 5
f(4) = -2.4 + 5
f(4) = -8 + 5
f(4) = -3
2014-05-01T15:32:43+07:00
F(4)maksudnya x = 4 Jadi, -2x4+5 = -8+5 = -3