They are its coordinates in the Cartesian plane.
It is [(3 + -13)/2, (3 + -13)/2] = [-10/2, -10/2] = (-5, -5)
Not too sure of the question but if A is (1, 2) and B is (-3, -1) then it is a right angle triangle if the coordinates of C are at (1, -1) or (-3, 2)
The equation does not have and y variable in it: it is of the form x = c. Alternatively, the x coordinates of both points are the same and the y coordinates are not.
Example: draw the graph where y = 10 - x , from x = 0 to 5 step 1
citrus
If the coordinates of the end points are (a,b) and (c,d) then the midpoint is the point whose coordinates are [(a+c)/2, (b+d)/2]
The 'x' coordinate of B is the average of the 'x' coordinates of A and C. The 'y' coordinate of B is the average of the 'y' coordinates of A and C.
The country located at 50 N and 10 E coordinates is Germany.
The coordinates for the Andromeda Galaxy are 00h 42.44m 30s, +41° 16′ 10″
to locate coordinates ..
They are its coordinates in the Cartesian plane.
The other end point is (8,-10).
The coordinates are (10, 5).
apple
To get the slope, calculate (difference of y-coordinates) / (difference of x-coordinates).
You go to the C room, then figure out the coordinates.