Find the interval(s) on which the function is negative. y = x^2 - 6x - 16

I. (-∞, -2)
II. (-∞, 3)
III. (-2, 8)
IV. (8,∞)

A. III only
B. I only
C. II only
D. I, II

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.