Acurve is described by the following parametric equations: x+3+t, y=t^2-4 which statement best describes the curve? 1 the curve is a parabola with a vertex at left parenthesis 3 comma negative 4 right parenthesis and is traced from left to right for increasing values of t. 2 the curve is a parabola with a vertex at left parenthesis 3 comma negative 4 right parenthesis and is traced from right to left for increasing values of t. 3 the curve is a parabola with a vertex at left parenthesis negative 3 comma 4 right parenthesis and is traced from left to right for increasing values of t. 4 the curve is a parabola with a vertex at left parenthesis negative 3 comma 4 right parenthesis and is traced from right to left for increasing values of t. 2