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A plane has the normal vector = (1, 3, 4) and passes through the point P( 3, 1, 8). Find an equation for the plane. Find an equation of the plane through the point (7, 4, 5) and parallel to plane z = 3x + 1y. Find a plane through the points (2, -5,-5), (5,-7,-7), (-4,8,-7)Find a plane through the point (2,4,-5) and orthogonal to the line ac (t) = - 4-8t y(t) = -1+ 8t z(t ) = 5+7t