Find the co-ordinates of points on the x-axis which are at a distance of 17 units from the point (11, -8).

Let the co-ordinates of the point on the x-axis be (x, 0). Since, distance = Let (x, 0) = (x1, y1) and (11, -8) = (x2, y2) ⇒ Distance between the given points = Hence, the co-ordinates of points are (26, 0) and (-4, 0).