How do you get from the coordinates D(-4,-3) E(-5,4) to D'(3,-4) E'(-4,-5)? I need the answer, quick!

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Icould really use some with this question.

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your