(a) Find the equation of the plane p which passes through the three points (A 1,0,1), B(2,−1,1) .and C(0,3,2) . (b) Find a scalar parametric form of the equation for the line which passes through the point D(−1,1,1) and which is perpendicular to the plane p. (c) Let E be the point where the line intersects the plane p. Find, in the scalar parametric equation for the line, the value of the parameter which corresponds to the point E and hence find the co-ordinates of this point. (d) What is the closest distance of the point D from the plane p? i've done most of the question but i'm not quite sure ive got the right answer. And i don't understand what it means by scalar parametric form in part b, does the question just want me to write it as three separate linear equations?