Question

The stock of a beverage company over past x months can modeled by the polynomial S(x) = -0.32x3 + 5x - 250. How many months did stock equal 0?

Select one:
a. 1
b. 2
c. 3
d. 0

Answer 1

@DDCamp

Answer 2

The question is asking how many zeroes this function has. Since this is a cubic function (The highest exponent is three) How many zeroes does it have?

Answer 3

3

Answer 4

@DDCamp

Answer 5

Yes, 3

Answer 6

1, igraphed it

Answer 7

@DDCamp

Answer 8

Hmm, it must have imaginary roots then. Your math book probably has some way to check how many real roots there will be.