F(x) = (x-3)(x+2)(x + 4)(x - 1)(2x – 9) has zeros at x = -4, x = -2, x = 1, x = 3, and x = 9/2
What is the sign of f on the interval -2 < x < 9/2?
Choose 1 answers
A: f is always positive on the interval.
B: f is always negative on the interval.
C: f is sometimes positive and sometimes negative on the interval.