What is the answer to this question in the picture

  9

Step-by-step explanation:

Compare your trinomial to ...

  (x +a)^2 = x^2 + 2ax + a^2

You will notice that the constant (a^2) is the square of half the x-coefficient (2a).

The x-coefficient in your trinomial is 6. The square of half that is ...

  (6/2)^2 = 3^2 = 9

The value of the constant is 9 to make it a perfect square.

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

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)