BNU1501
Department of Decision Sciences
Assignment 04 for Semester 01 2022 (compulsory)
Unique Number: N/A
Due Date: April 2022
Assignment 04 2022
Study material: Chapters 6 and 7 in the Study Guide
Question 1
If a vertical and horizontal number line intersect perpendicularly, they form
right angles (of 90◦) with each other and a co-ordinate system of axes is formed, the
horizontal line is called:
[1] Quadrants
[2] Y-axes
[3] Co-ordinates
[4] X-axes
Answer:
, The two-dimensional rectangular coordinate system contains two perpendicular axes: the
horizontal x-axis and the vertical y-axis. We can add a third dimension, the z-axis, which is
perpendicular to both the x-axis and the y-axis. We call this system the three-dimensional
rectangular coordinate system. It represents the three dimensions we encounter in real life.
Refer to page 103 of the study guide:
The horizontal line is called the x-axis, and the vertical line is called the y-axis. These two
axes MUST be clearly indicated with an x and a y.