The coordinates of point b are (–1, 4) and the coordinates of point a are (–1, 0). if abcd is a square, what are the coordinates of point c?

To solve the problem shown above, you must apply the proccedure shown below:

 1. You have the following coordinates for each vertex of a square:

 - The coordinates of point b are (–1, 4).
 - The coordinates of point a are (–1, 0).

 2. The figure abcd is a square, this means that all its sides are equal lengths, and the x coordinate of both points are -1, therefore, the length of the side bc must be 1. Based of this, you have that the coordinates of the point c  are:

 c(0,0)

 The answer is: c(0,0)