CBSE Class 9 Mental Maths Coordinate Geometry Worksheet

Question. Name the mathematician who developed Co-ordinate geometry.
Answer : Rene Descrete

Question. How many points are required to locate a line segment?
Answer : Two

Question. The axis divide the plane into four parts. What these four parts called?
Answer : Quadrants

Question. What are the co-ordinates of origin?
Answer : (0, 0)

Question. What is the point of intersection of axis called?
Answer : Origin

Question. What is the distance of a point form y -axis called?
Answer : Abscissa

Question. What is the distance of a point from x-axis called?
Answer : Ordinate

Question. What is the name of the horizontal and vertical lines drawn to determine the position of any point to the cartesian plane?
Answer : x-axis and y - axis

Question. What is the equation of x -axis?
Answer : y = 0

Question. Line y = 0 represents which axis?
Answer : x - axis

Question. Line y = 2 is parallel to which axis?
Answer : x - axis

Question. Line x = -3 is parallel to which axis?
Answer : y - axis

Question. What is the perpendicular distance of the point P(4,3) from x-axis?
Answer : 3 units

Question. What is the perpendicular distance of the point Q(5,7) from y-axis?
Answer : 5 units

Question. Which of the following points lie in the fourth quadrant (-3, -5) , (2, -1) , (-2, 4) , (4, -7), (5, 6)?
Answer : (2, -1) & (4, -7)

Question. Name the figure obtained by joining the points (0, 0), (5, 0), (5,5), (0,5) in the cartesian plane.
Answer : Square

Question. Name the figure obtained by joining the points (0, 0), (5, 0), (5,3) and (0,3) in the cartesian plane.
Answer : Rectangle

Question. Name the figure obtained by joining the points (-5, 0), (0,5) and (5,0) in the cartesian plane.
Answer : Traingle

Question. Name the axis on which the point (7, 0) lie.
Answer : x - axis

Question. Name the axis on which the point (0, 9) lie.
Answer : y-axis

Question. Find the co-ordinates of the point whose abscissa is 9 and ordinate is -2.
Answer : (9, -2)

Question. Find the co-ordinates of the point whose ordianate is 3 and lies on x - axis.
Answer : (0, 3)

Question. Find the co-ordinates of the point whose abscissa is -3 and lies on x - axis..
Answer : (-3,0)

Question. Name the quadrant in which the point (-2,4) lies.
Answer : II quadrant

Question. If the points P(1,0), Q(5,0), R(5,2) and S forms a rectangle. Then find the fourth vertex S.
Answer : (1,2)

Question. If the points A(0,0), B(2,0), C(2,2) are three vertices of a square then find the fourth vertex of the square.
Answer : (0, 2)

Question. Which of the following points lie on x-axis
(i) (3,0)
(ii) (2,-3)
Answer : (3, 0)

Question. If the point (x,y) lies on x-axis then what is the value of y?
Answer : y = 0

Question. If the point (x,y) lies on y-axis then what is the value of x?
Answer : x = 0

Question. Find the co-ordinate of the point whose abscissa is 9/2 and ordinate is 5.
Answer : (4.5, 5)

Question. Find the co-ordinate of the point whose abscissa is 3and ordinate is 7/2 .
Answer : (3, 3.5)

Question. Which of the following point lies on x-axis.
(i) (0,-2)
(ii) (-2, 0)
Answer : (-2, 0)

Question. Which of the following point lies on y-axis.
(i) (0,-3)
(II) (2, -3)
Answer : (0, -3)

Question. Which of the following point lies on x-axis.
(i) (0,0)
(II) (5, 0)
Answer : (5, 0)

Question. A point lies on x-axis at a distance of 6 units from y -axis and lies on right side of origin. 
Find the co-ordinates of the point..
Answer : (6, O)

Question. A point lies on y-axis at a distance of 1 units from x -axis and lies above x-axis. Find the co-ordinates of the point..
Answer : (0, 1)