Final answer:
The vector equation of the plane is r = a + s(3i) + t(-1j) + u(3k), and the parametric equations of the plane are x = 3s, y = -1 - t, and z = 3u.
Step-by-step explanation:
To determine the vector equation and parametric equations of a plane, we can use the intercepts given. The intercepts are (3, 0, 0), (0, -1, 0), and (0, 0, 3).
The vector equation of the plane is r = a + s(3i) + t(-1j) + u(3k), where a is any point in the plane and (3i), (-1j), and (3k) are the direction vectors along the x, y, and z axes respectively.
The parametric equations of the plane are x = 3s, y = -1 - t, and z = 3u, where s, t, and u are parameters.