... eliminate t, we solve for t in the equation for y: t = cos -1 (1 - y/a) Therefore, x = a{cos-1 (1 - y/a) -sin [cos-1 (1 - y/a)]} Pretty awful, isn't it?! For all practical purposes, this form is impossible ... We will use only the x and y on the graph t x y -2 -4 -1 -2 -3 /4 0 -1 -3 /4 5/4 We can eliminate t: x = 2t; t = x/2; y = (x/2) /4 - = x2/16 - It is clear we did not really need the parame ter t ... Since the degree of the top is greater than or equal to the degree of the bottom, long-divide the bottom into the top until the degree of the top is less than the degree of the bottom Look at the...