A ship travels at a constant speed of 25 kilometres per hour (Kph) in a straight line from port A located at position (x_A, y_A) =(-100, -100) to port B at (x_B ,y_B )=(300 ,100).

A) Find parametric equation for the line of travel of the ship .your equation should be in terms a parameter t, and should be such that the ship is at port A when t=0 and at port B when t=1.

(b) During its journey ,the ship passes two lighthouses ,L_1 and L_2, which are located at positions (0,0) and (200.0), respectively.
write down expressions ,in terms of the parameter t of part (a) ,for the squares d_1^2 and d_2^2 of distances between the location of the ship at parameter value t and the lighthouses L_1 and L_2 respectively .Simplify your results.
please need your help.
thanks

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