 Hello and welcome to the session. Let us discuss the following question. It says fill in the blanks The first one is the x-axis and y-axis taken together Determine a plane known as it is known as xy plane So here we if we take x and y-axis together and this plane forms the xy plane similarly The y-axis and z-axis taken together forms a y-z plane and x-axis and z-axis taken together forms a x-z plane so Answer to the first part is xy plane now The second one says the coordinates of a point in the xy plane are of the form they are of the form xy0 So here if we are given a point in the xy plane So here the coordinate of z will be 0 the point in the xy plane is of the form x y 0 and third one is coordinate planes divide the space into 8 octanes So the answer to the first part is xy plane and to the second part answer is xy0 and the coordinate planes Divide the space into 8 regions and this completes the question bye for now take care have a good day