2000 AMC 12 Question 22 - thichhoctoan.com

Question 22

The graph below shows a portion of the curve defined by the quartic polynomial $$
P(x) = x^4 + ax^3 + bx^2 + cx + d.
$$ Which of the following is the smallest?

Question illustration

$P(-1)$
The product of the zeros of $P$
The product of the non-real zeros of $P$
The sum of the coefficients of $P$
The sum of the real zeros of $P$