Answer:
The 4th graph is the correct answer
Explanation:
f(x) = x³ - 3x² - 4x
f(x) = x(x² - 3x - 4)
f(x) = x(x - 4)(x + 1) = 0
x = 0, x = 4, x = -1
(0, 0), (4, 0), (-1, 0)
These are x-axis intercepts;
The 4th graph passes through these point so it is the correct answer.