1. (20pts) Design and instantiate a structure which has 2 fields: color (line color), positions (positions of a line), color is represented by a string and positions is represented by a lg which has only 2 elements. Each element is a posn structure with 2 fields: * (x coordinate) and y by coordinate). x and y are represented by numbers. (Do not forget to write down the functions constructors, selectors, and predicates. Solve Question 2,3 by using that structure) Distance of two points A(X1,Y:) and B(x,y) is given by: distance(A,B) = (x,-x)+(9,-y! USING DR RACKET 1. (20pts) Design and instantiate a structure which has 2 fields: color (line color), positions (positions of a line), color is represented by a string and positions is represented by a lg which has only 2 elements. Each element is a posn structure with 2 fields: * (x coordinate) and y by coordinate). x and y are represented by numbers. (Do not forget to write down the functions constructors, selectors, and predicates. Solve Question 2,3 by using that structure) Distance of two points A(X1,Y:) and B(x,y) is given by: distance(A,B) = (x,-x)+(9,-y! USING DR RACKET