Three vertices of a square are (–1, 2), (2, 2), and (2, –1).
what is the fourth vertex of the square?
(–1, –1)
(–1, –2)
(2, 1)
(5, 1)
question 5
three vertices of a square are (–1, 2), (2, 2), and (2, –1).
what is the fourth vertex of the square?
(–1, –1)
(–1, –2)
(2, 1)
(5, 1)

(-1,-1)

The square needs to be all side with the same value when you graph the vertices on x-y plot, you obtain (x is the dot that correspond a vertice and y the forth vertice )

                            x       2 |                        x

                                      1 |

                                       |                                  

      -2                  -1         |          1              2

                            y        -1|                       x

                                     -2 |

If you draw a line between vertices the value it will be 2 +  (-1) so the forth vertice has to be (-1,-1)

assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation: