define the delete_point function of the CartesianPlane class

define the extraction operator for line object

define get_points function in Cartesian Plane class

define the get_coords function

define the find method of the Cartesian Plane class for Lines

define get_point_names function in Cartesian Plane class

define the get_x_intercept function

define get_lines method of the cartesian plane class

defined the distance operator(-)

define delete_all(Line) method for lines in the CartesianPlane class

define the parallel operator of Line class

define the midpoint function of Point

define midpoint formula operator %

define the plot methods for plotting points in Cartesian Plane class

define the save_line methods of the Cartesian Plane class

define y intercept function

define delete_all function for points for the Cartesian Plane class

define distance formula operator from line to line in the Line class

define parallel function of Line class

define cartesian plane class's get_line_names() method

define the slope function of Line class

define distance formula operator from point to line in the Line Class

define check if lies methods of the lines class to check if a point lies on a line or not

define delete_line method of the Cartesian Plane class

define the distance formula function for point to line in the Line class

define the find function for points in Cartesian Plane class

define delete_all(void) method of the Cartesian Plane class

define same point function of Cartesian plane class

define perpendicular function of Line class

define the extraction operator for Point class

defined the distance function of point

define distance formula function from line to line for the Line class

define the perpendicular operator of the Line class

define the get_formula function of the line class