3. Identify each following representation as a function or nonfunctional and explain your reasoning. (c)
x y
0 6
3 3
6 0
9 3
12 6
(d)the pic goes with this qustion

Evaluate cos2θ for cosθ = square root of 3/2

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Which graph represents the function g(x) = |x + 4| + 2?