Find a relation between x and y such that the points P(x, y) is equidistant from A(5, 1) and B(-1, 5).
Find a relation between x and y such that A(x, y) is equidistant from the points (a + b, b - a) and (a - b, a + b).
Find a relation between x and y such that P(x, y) is equidistant from the points A(-2, 5) and B( 1, -3).