Consider the parametric equations below. x = 1 + 2t, y = 2 − t2 (a) sketch the curve by using the parametric equations to plot points. indicate with an arrow the direction in which the curve is traced as t increases. webassign plot webassign plot webassign plot webassign plot changed: your submitted answer was incorrect. your current answer has not been submitted. (b) eliminate the parameter to find a cartesian equation of the curve.