2. Find a parametrization for each of the following: a) The line segment from point P : (1, 3) to Q : (3, 2). b) The left half of the parabola y = m2 + 2x. c) The circle (:1: 2)2 + 3/2 = 1 starting at (1,0) moving clockwise around the entire circle. How could this be modied so that the graph is traced twice as fast if the parameter t were considered time