find a parametrization for the curve.  1. the left half of the parabola y = x2 + 2x  2. the ray (half line) with initial point (2, 3) that passes through the point (-1, -1) 3. the ray (half line) with initial point (-1, 2) that passes through the point (0, 0)

Question

find a parametrization for the curve. 

1. the left half of the parabola y = x2 + 2x 

2. the ray (half line) with initial point (2, 3) that passes through the point (-1, -1)

3. the ray (half line) with initial point (-1, 2) that passes through the point (0, 0)

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