Find an equation of the form ax by cz=24 for the plane through the three points given: P=(0,4,0),Q=(3,0,3),R=(2,0,4) =24 Hint. The standard way of solving questions like this one according to our textbook involves using the "cross product" of two vectors that lie in the plane (such as PQ and PR ); cf. Example 3.18 on page 114 of the PDF version of the textbook