B is wrong btw so if you can help please do

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Which of the following represents the range of the graph of f(x) below

Bella want to know what the students at her school think of her show. which is the best group to survey to find this information a. go to the mall and ask all of the students she recognizes from school b. ask her viewers to call in durning an episode of the show c. get a list of students at her school from the office and use a random number generator to pick 30 of them d. get a list of students at her school from the office and pick the first 30 students on the list