Which statement describes the graph of this polynomial function?
f(x) = x4 + x3 – 2x2

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e. g. 98.765).

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Which strategy is used by public health to reduce the incidence of food poisoning?