MCQs on Class 9 Maths: Chapter 3 Coordinate Geometry

Each question has 4 options. Choose the correct answer to improve your problem-solving skills.

1. The name of the horizontal line in the Cartesian plane which determines the position of a point is called:

• a. Origin
• b. $x$-axis
• c. $y$-axis
• d. Quadrants

Answer: b

5. If the coordinates of a point are $(0,-4)$, then it lies on:

• a. $x$-axis
• b. $y$-axis
• c. At origin
• d. Between $x$-axis and $y$-axis

Answer: b

Explanation: Since $x=0$ and $y=-4$, the point will lie on the negative $y$-axis $4$ units away from the origin.

11. Signs of the abscissa and ordinate of a point in the second quadrant are respectively:

• a. $+$, $+$
• b. $+$, $-$
• c. $-$, $+$
• d. $-$, $-$

Answer: c

Explanation: The signs of abscissa ($x$-value) and ordinate ($y$-value) in the second quadrant are $-$ and $+$ respectively.

14. Abscissa of all the points on the $x$-axis is:

• a. $0$
• b. $1$
• c. $2$
• d. Any number

Answer: d

Explanation: Abscissa of all the points on the $x$-axis can be any number. The coordinates of any point on the $x$-axis is $(x,0)$, where $x$ can take any value.

20. The point which lies on the $y$-axis at a distance of $5$ units in the negative direction of the $y$-axis is:

• a. $(5,0)$
• b. $(0,5)$
• c. $(-5,0)$
• d. $(0,-5)$

Answer: d

Explanation: The coordinates of any point on the $y$-axis is $(0,y)$. Given that the point lies in the negative direction, $y$ must be $-5$. Therefore, the point is $(0,-5)$.