In the function f(x) = 2x + 3, x is the dependent variable.
True or false

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

According to the data set, where should the upper quartile line of the box plot be placed?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.