B ONLY

The figure below shows a fixed circle Cj with equation (x - 1)2 + y2 = 1 and another shrinking circle C2 centered at the origin with positive y-intercept P=(0,r). Let Q be the point of intersection between the two circles pictured, draw a line through P and Q and let R be the x-intercept of that line. ON X (a) Find the coordinates of the point Q; your answers will involve r: Q= ( V42 4 (b) The line through P and Q has equation V4-72-2 x + X (c) The point R=( O 2- V4-72 10:47 PM