$(1)$ The $\_\_$init$()\_\_$ allows for four different kinds of initializations using this form of a line $($y $=$ mx $+$ b$)$ two points $$ point and intercept $$ point slope $$ function where input is a string showing equation without $*$ At least three attributes self.m$,$ self.b$,$ self.fn that hold the slope, intercept, and functional form of the line. Here are examples of each: $1$ x $=$ Line $($ points $=((-2,3),(3,5)))2$ y $=$ Line $($ point$\_$intercept $=((-2,3),3\mathrm{.}8))3$ z $=$ Line $($ function $=0\mathrm{.}4$ x $+3\mathrm{.}8)4$ a $=$ Line $($ point$\_$slope $=((-2,3),\mathrm{.}4))5$ b $=$ Line $($ function $=$x $-3)(2)$ The build$\_$lambda uses self.m$,$ self.b and returns self.fn $($ x : xm $+$ b$)$ so that we can use the line as a function. You are free to use this in $\_\_$init$()\_\_$ if you deem it useful. $(3)$ The $\_\_$and$()\_\_$ allows us to override &$.$ This is used to determine if we have two lines: if they intersect, then a tuple returned with the coordiates of the point of intersection; if lines are parallel then the tuple $("$parallel$",)$ is returned; if lines are the same then tuple $("$same$",)$ is returned. $(4)$ The $\_\_$call$()\_\_$ function allows us to use the objects as a function call. For example, $1$ x $=$ Line $($ points $=((-2,3),(3,5)))$