Geometry (all content)
Points and quadrants example
Plot an ordered pair like (-4, -2) and then decide which quadrant it is in. Created by Sal Khan.
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- Why do they have axases?(7 votes)
- 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.
Did this help answer your question?(10 votes)
- quadrants are numbered in counterclockwise order starting at the upper right quadrant, how would octants be numbered? starting where and what order?(7 votes)
- You name the axis that it is on instead of the quadrant. (0,0) is on the origin(0 votes)
- In which quadrant does (0,0) lies?(4 votes)
- 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.(10 votes)
- 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?(5 votes)
- 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".(2 votes)
- 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(9 votes)
- how do you remember which quadrant is wich(3 votes)
- so the way I remember it is to make the letter C in the graph(3 votes)
- What exactly is a quadrant?(0 votes)
- A quadrant is four parts of a plane, sphere, space, or body divided by two lines or planes at right angles.(13 votes)
- Don't get this.What do I do?(3 votes)
- Why are the quadrants designated as such? Is there any particular reason? Thank You.(2 votes)
- It's just a convention, I believe. Some other places have different orders for their quadrants, though I think the regular order (shown by Sal) is in the order you encounter them as directional angles increase. Hope this helps :D(3 votes)
- Why the quadrants are organized clockwise?
Why the quadrants are named in roman numbers?(1 vote)
- I believe to keep it in order. If it went backwards, it would be confusing.
The Roman numerals; that I don't know. ovo;(4 votes)
Plot 4 comma negative 1, and select the quadrant in which the point lies. So 4, the first number in our ordered pair, that's our x-coordinate. That says how far to move in the horizontal or the x-direction. It's a positive 4. So I'm going to go 4 to the right. And then the second coordinate says, what do we do in the vertical direction or in the y-direction? It's a negative 1. Since it's negative, we're going to go down. And it's a negative 1, so we're going to go down 1. So that right over there is the point 4 comma negative 1. So I've plotted it, but now I have to select which quadrant the point lies in. And this is just a naming convention. This is the first quadrant. This is the second quadrant. This is the third quadrant. And this is the fourth quadrant. So the point lies in the fourth quadrant, quadrant IV. And I guess you have to know your Roman numerals a little bit to know that's representing quadrant IV. Let's do a couple more of these. Plot 8 comma negative 4, and select the quadrant in which the point lies. Well, my x-coordinate is 8 so I go 8 in the positive x-direction. And then my y-coordinate is negative 4, so I go 4 down. And this is sitting, again, in not the first, not the second, not the third, but the fourth quadrant, in quadrant IV. Let's do one more of these. Hopefully we get a different quadrant. So we want to plot the point negative 5 comma 5. So now my x-coordinate is negative. It's negative 5. So I'm going to move to the left in the x-direction. So I go to negative 5. And my y-coordinate is positive so I go up 5, so negative 5 comma 5. And this is sitting not in the first quadrant, but the second quadrant. And of course, this is the third and the fourth. So this is sitting in the second quadrant. Check answer, and we got it right.