If using the method of completing the square to solve the quadratic equation x^2 - 13x – 7= 0, which number would have to be added to "complete the
square"?
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On a coordinate grid, point p is at (4, 3) and point r is at (−2, −5). points q and s are a reflection of both points across the x-axis. what are the coordinates of q and s? q(−4, 3), s(2, −5) q(4, −3), s(−2, 5) q(−4, −3), s(2, 5) q(−4, 3), s(−2, 5) ; -; i can't figure it out, if someone can me with the answer,that would be nice

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

When you answer this can you explain