Me ! i got that answer but i think i'm wrong

It is wrong, but close. Seperate the numbers and the varibles, to get 3/9 times x^2/x^5 which is the same thing, but can help you contemplate how to simplify the expression. If then simplified seperate you should get 1/3 times 1/x^3. From there just add the two to get 1/3x^3.  

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)