Mathematics Class 9 MCQ Quiz
Chapter 3 COORDINATE GEOMETRY
COORDINATE GEOMETRY for 9th Class Quiz topics covered : Cartesian system, Coordinate axes, Origin, Quadrants, Abscissa, Ordinate, Coordinates of a point, Ordered pair, Plotting of points in the cartesian plane
- total Questions =10
- To know total score a button is given at the end of this quiz
- Each correct question carry one marks.
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Q. 4. Which of the points $\mathrm{P}(0,3)$, $\mathrm{Q}(1,0), \mathrm{R}(0,-1), \mathrm{S}(-5,0)$, $\mathrm{T}(1,2)$ do not lie on the $x$-axis? |
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Main Concepts and Formule Chapter 3 Class 9 Mathematics Co-ordinate Geometry
- In the Cartesian plane, the horizontal line is called the $x$-axis and the vertical line is called the $y$-axis
- The coordinate axes divide the plane into four parts called quadrants
- The point of intersection of the axes is called the origin
- $\quad$ Abscissa or the $x$-coordinate of a point is its distance from the $y$-axis and the ordinate or the $y$-coordinate is its distance from the $x$-axis
- $\quad(x, y)$ are called the coordinates of the point whose abscissa is $x$ and the ordinate is $y$
- Coordinates of a point on the $x$-axis are of the form $(x, 0)$ and that of the point on the $y$-axis is of the form $(0, y)$, - The coordinates of the origin are $(0,0)$
- Signs of the coordinates of a point in the first quadrant are $(+,+)$, in the second quadrant $(-,+)$, in the third quadrant $(-,-)$ and in the fourth quadrant $(+,-)$