Consider the following parametric equations. a. Eliminate the parameter to obtain an equation in x and y. b. Describe the curve and indicate the positive orientation. x = Be , y=e' - 3; Osts7 a. Eliminate the parameter to obtain an equation in x and y. (Type an equation.) b. Describe the curve and indicate the positive orientation. (Type an ordered pair. Simplify your answer.) O A. Aradical curve falls to the left as t increases, starting at O B. A radical curve rises to the right as t increases, starting at O C. A quadratic curve falls and then rises to the left as t increases, starting at O D. A quadratic curve falls and then rises to the right as t increases, starting at