The video is all about understanding the basics of the coordinate plane. It explains how to plot points using ordered pairs, with the first number indicating the horizontal (x-axis) movement and the second number showing the vertical (y-axis) movement. Created by Sal Khan.
Want to join the conversation?
- Why would I need to know this in real life?(26 votes)
- how do you use graphing in your everyday life?(11 votes)
- graphing can be used to look at patterns and correlations in data sets. once, at school, we looked to see if there was a correlation between attendance and ranking in major league baseball. what we found was that most of the time the more people who went to see a team, the higher the teams ranking was (or the other way around). graphing can be used in businesses to do things like track sales or see if some things are over all better than others. basically, graphing has hundreds of different purposes.(1 vote)
- What is a plot?(0 votes)
- A plot would be the 2 points you need to graph. He plotted (8, 10) and (6, 10) So he had two plots to graph.(17 votes)
- this is not free vbucks(7 votes)
- Why there has to be a y axis and x axis(0 votes)
- I’m really stuck on 1+1 help me(3 votes)
- dose school suck yes or no(3 votes)
- How do you use this in everyday life.(2 votes)
- So I actually use these types of grids all the time in game development and CGI creation.
Graphs are used for MANY things including displaying statistics(2 votes)
We are asked to plot 8 comma 10. So the first number in this ordered pair, this is our x-coordinate. This tells us how far do we move in the x direction. It's a positive 8, so we move 8 in the x direction. And then the second number in our ordered pair is 10. That is our y-coordinate. That tells us how far we move in the y direction. Since it's positive, we move up 10. So we move up 10, all the way over here. And you could have thought about it either way. You could have said, hey, look this is our y-coordinate. This is 10. So I could move up 10. And then my x-coordinate is positive 8. So I'll move 8 along the positive x-axis, or I'll move 8 to the right. You see right over here I have moved 8 to the right-- 1, 2, 3, 4, 5, 6, 7, 8. And I have moved 10 up-- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. You might be tempted to move 8 up and then 10 to the right, which would put you there. But then you would have had the two numbers mixed up. You would have had the x and the y-coordinates mixed up. The 8 tells you how far to move in the horizontal direction. The 10 tells you how far to move in the vertical direction. Let's do a couple more of these. Plot 6 comma 10. Well once again, the first number in the ordered pair is the x-coordinate, how far we move in the x direction. So we move 6 to the right. And then the second number, the 10, tells us our vertical coordinate, our y-coordinate. So it's positive 10. So we move 10 up. Let's do one more-- 5 comma 7. So my horizontal coordinate is 5, so I move 5 to the right. And then my vertical one is 7, or my y-coordinate is 7. So I move 7 up-- 1, 2, 3, 4, 5, 6, 7. And as long as you remember which one is horizontal and which one is vertical or which one is the x-coordinate and which one is the y, you should be fine. You could say, hey look, this is my y-coordinate, 7. So I'm going to move 7 up. And my x-coordinate is 5, so I'm going to move 5 to the right. And it will get you to that exact same point. This specifies exactly one point in the coordinate plane.