Which students write the correct express

Which facts are true for the graph of the function below? check all that apply. f(x) = log8 x

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

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