human
Given a midpoint and a coordinate work out the position of the other coordinate, where all the values are integers but at least one is negative Here are two points and their midpoint.
What should replace the star? ![A set of axis including all four quadrants. Lilac circle marked and labelled by coordinates (-6, 3). Red circle marked and labelled coordinates (-1,1). Another lilac circle in the fourth quadrant marked and labelled with a set of brackets, x coordinate covered by a yellow star and y coordinate covered by a green triangle. ]() \(\color{gold}\bigstar\) = 6 
gpt
Given a line segment with a midpoint that is not the origin, assumes that the two end points will still have the same absolute value