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Vidaara.orgClass 9 · Mathematics
CodeVID-M09-03-PLT-01
Plotting Points — Assignment
Chapter: Coordinate Geometry
Topic: Plotting Points in the Plane
Maximum Marks: 35
Time: 75 minutes
Name: ____________________ Roll No.: __________ Date: ____________

General Instructions

  • All questions are compulsory.
  • Section A carries 1 mark each, Section B 2 marks, Section C 3 marks and Section D 5 marks.
  • Show all working for Sections B, C and D. Only final answers are given at the end — for full solutions, raise your doubts with your teacher.
Section A — Multiple Choice Questions 5 × 1 = 5 marks
1.
To plot $(a,b)$, the second move ($b$) is:
  • A.along the x-axis
  • B.parallel to the y-axis
  • C.diagonal
  • D.to the origin
2.
$(0,0)$ is plotted at the:
  • A.x-axis end
  • B.origin
  • C.y-axis top
  • D.quadrant I
3.
Points with the same y-coordinate lie on a line parallel to the:
  • A.y-axis
  • B.x-axis
  • C.line $y=x$
  • D.diagonal
4.
$(2,0)$ lies on the:
  • A.y-axis
  • B.x-axis
  • C.line $y=x$
  • D.origin
5.
Points $(x,x)$ lie on the line:
  • A.$y=0$
  • B.$x=0$
  • C.$y=x$
  • D.$y=-x$
Section B — Short Answer (2 marks) 4 × 2 = 8 marks
6.
In which quadrant is $(3,4)$?
7.
Where is $(0,-3)$ plotted?
8.
In which quadrant is $(-2,5)$?
9.
Points $(1,2),(2,2),(3,2)$ lie on a line parallel to which axis?
Section C — Short Answer (3 marks) 4 × 3 = 12 marks
10.
Plot $(1,1),(2,2),(3,3)$ — what do you notice?
11.
The points $(-1,2)$ and $(-1,-3)$ lie on a line parallel to which axis?
12.
Name the figure formed by $(0,0),(4,0),(4,3),(0,3)$.
13.
Find the distance between $(2,3)$ and $(2,-3)$.
Section D — Long Answer (5 marks) 2 × 5 = 10 marks
14.
Plot $A(1,1),B(5,1),C(5,4),D(1,4)$, name the figure and find its area.
15.
The points $(0,0),(4,0),(2,3)$ form a triangle. Find its area.

Answer Key

Section A — Multiple Choice Questions
  1. (B) parallel to the y-axis
  2. (B) origin
  3. (B) x-axis
  4. (B) x-axis
  5. (C) $y=x$
Section B — Short Answer (2 marks)
  1. I.
  2. On the y-axis, below the origin.
  3. II.
  4. The x-axis.
Section C — Short Answer (3 marks)
  1. They lie on the line $y=x$.
  2. The y-axis.
  3. A rectangle.
  4. $6$.
Section D — Long Answer (5 marks)
  1. A rectangle; area $=4\times3=12$ sq units.
  2. $6$ sq units.
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