The endpoints of `bar(ef)` are e(xe , ye) and f(xf , yf). what are the coordinates of the midpoint of `bar(ef)`? a. `((x_f)/()/(2))` b. `((x_e)/()/(2))` c. `((x_e+x_f)/(+y_f)/(2))` d. `(x_e+(x_f)/(2),y_e+(y_f)/(2))`

For a better understanding of the solution provided here please find the diagram attached.

Please note that in coordinate geometry, the coordinates of the midpoint of a line segment is always the average of the coordinates of the endpoints of that line segment.

Thus, if, for example, the end coordinates of a line segment are and then the coordinates of the midpoint of this line segment will be the average of the coordinates of the two endpoints and thus, it will be:

Thus for our question the endpoints are and and hence the midpoint will be:

Thus, Option C is the correct option.