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## Class 9 (Assamese)

### Course: Class 9 (Assamese)>Unit 3

Lesson 1: Cartesian system

Plotting points on a graph involves moving along the x and y axes. Positive x-values move right, negative x-values move left. Positive y-values move up, negative y-values move down. The graph is divided into four quadrants, helping us locate points easily. Created by Sal Khan.

## Want to join the conversation?

• Why do they have axases?
• The axis are to plot points. You can't plot without an "address", and since coordinate planes are theoretically infinite, there needs to be something to define where a point is. The axis is kind of like a street in a city then the points are the different houses, if that analogy makes sense.

• Hello everyone! Please don’t be disrespectful to those who don’t know something! That’s why these comments exist, Instead of making fun of them for not knowing the answer: Help the, understand how you do. To anyone who has received harmful answers, Don’t be discouraged, They are learning something too you are very smart and keep trying!
• quadrants are numbered in counterclockwise order starting at the upper right quadrant, how would octants be numbered? starting where and what order?
• You name the axis that it is on instead of the quadrant. (0,0) is on the origin
• In which quadrant does (0,0) lies?
• The point (0,0) doesn't lie in a specific quadrant. This is because it's essentially where the two axes (x and y) meet; the boundary between all 4 quadrants. It's known as the origin, and not really defined as belonging to any of the quadrants on a coordinate plane.
• Could someone help me? I have been stuck on graphing for awhile and my teacher wants me to redo my test because of it. Does anyone know some ways I got possibly remember?
• Under the assumption that your problem is remembering the quadrant locations, a simple way you can remember the quadrants is by imagining how you write a "c". Specifically, the order of all the quadrants goes as top right, top left, bottom left, bottom right. That's also the way you write a "c".
• In which quadrant does the point (0,1) lie?
(1 vote)
• Points that lie directly on the x and y axis aren't considered to be in a quadrant. In this case, you would just say that the point (0, 1) lies on the y-axis
• how do you remember which quadrant is wich
• so the way I remember it is to make the letter C in the graph
• Just to ask, is it a necessity to say "comma" in between numbers? because I think it's just [7,7] is read "7 by 7."
• You can read this as “seven comma seven” or “seven units to the right and seven units up”
(1 vote)
• What exactly is a quadrant?