Jawabanmu

2014-05-27T10:29:16+07:00
F(x) = x^4 - 4x
m = 4x³ - 4 di x = 1
m = 4(1)³ - 4 = 0
pers grs singgung di titik (1,-3) dan m = 0
y-y1= m(x-x1)
y -(-3) = 0(x-1)
y + 3 = 0
y = -3