Khan academy - 6th grade advanced

Anew fountain in the shape of a hexagon will have 6 sides of equal length. on a scale drawing, the coordinates of the vertices of the fountain are: (7.5,5), (11.5,2), (7.5,−1), (2.5,−1), (−1.5,2), and (2.5,5). how long is each side of the fountain?

Match each function with the corresponding function formula when h(x)=5-3x and g(x)=-3+5

Give all possible names for the line shown. calculation tip: lines can be written with either point first.