Suppose a curve is traced by the parametric equations 4(sin(t) + cos(t)) y = 28 — 12 cos² (t) — 24 sin(t) - - as t runs from 0 to π. At what point (x, y) on this curve is the tangent line horizontal? x = y = (1 point) Consider the parametric curve given by the equations x(t) = t² + 23t +47 y(t) = t² + 23t + 44 Determine the length of the portion of the curve from t = 0 to t = 7.