3 Parametric Equations 3 3 Parametric Equations 1. Consider the parametric equations Jx = Vt+1 y = 2t - 1 (a) For what values of t are the parametric equations defined? (b) Sketch a graph of the curve on the xy-plane that is defined by these parametric equations. Draw the graph on graph paper, with proper labeling of the axes and their unit markers. Keep in mind your answer to la. Use arrows to show the direction of increasing t. 2. Eliminate the parameter t to write a single Cartesian equation in a and y only. Write y as a function of z. Remember to simplify. x = et - 1 ly = Vt