Give a set of parametric equations that describes the following curves. Graph the curve and indicate the positive orientation. If not given, specify the interval over which the parameter varies.

The path consisting of the line segment from (-4, 4) to (0, 8), followed by the segment of the parabola y = 8 - 2x² from (0, 8) to (2, 0), using parameter values 0 ≤ t ≤ 3