Eliminate the parameter to find a Cartesian equation of the curve?

cartesian-equation

#1

(a) Eliminate the parameter to find a Cartesian equation of the curve.
(b) Sketch the curve and indicate with an arrow the direction in which the curve is traced as the parameter increases.
x = 1/2 cos θ, y = 2 sin θ, 0 ≤ θ ≤ π

Answer:
1)
image
2)
image