Question

Given GH with endpoints G(-11, 4) and H(-1, -9), what are the coordinates of the midpoint of GH?

Answer 1

Answer:

（-6，-5/2）

Step-by-step explanation:

Answer 2

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points }\\ \quad \\ \begin{array}{ccccccccc} &&x_1&&y_1&&x_2&&y_2\\ % (a,b) &&(~{{ -11}} &,&{{ 4}}~) % (c,d) &&(~{{ -1}} &,&{{ -9}}~) \end{array}\qquad % coordinates of midpoint \left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right) \\\\\\ \left( \cfrac{-1-11}{2}~~,~~\cfrac{-9+4}{2} \right)\implies \left(-6~~,~~-\frac{5}{2} \right)\implies \left( -6,~~-2\frac{1}{2} \right)$