Need help for all of these

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

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old