1. Which set of ordered pairs does not represent
a function?
A (1,5), (3, 18), (8, 6), (9, 18)
B (3, 7), (4,9), (5, 11), (4, 13)
C (15, 8), (12,9), (7, 10), (2, 11)
D (-2, 5), (5, 7), (8, -11), (9, 13)

What letter do I pick?

Geometry answer picture question pls . reason and statements

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

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)