Video4of4-PLOTTING Points/ Coordinates
Oct 25, 2021
Okay, so remember that in order to plot a point, you start here, it's like a car driving. You start here at the origin, as zero zero. You can the first number you can only go right or left, the second number, you can turn down a street, and go up or down. So let's look and see what our first number is going to be. So in order to plot the gingerbread man, we are going to need the first number, which is zero, 9. So that means that the car has to start at zero. So right here, we're starting at zero. We do not move to one. We don't move back to negative one. So I have to stay at zero. I can't move up to one, and I can't move back to negative one. I have to stay here at zero. The second number 9 tells me that I can now move up to a positive 9 or down to a negative 9. Because it's a positive 9, I'm going to drive over here, and I'm going to stop at number 9. And place a dot. So this is the point zero 9. The second coordinate. The second ordered pair is one 8. Again, my car has to come back here at the origin at zero zero and drive to number one, but you don't put a dot yet. You drive the number one, and then second, you can drive up to positive 8 or down to negative 8. I'm going to drive up on the same blue street same blue line to number 8 and put a dot here. This is the relation one, 8. This is one 8. Where the status. The second. The third coordinate is 1.5 comma 7. So we have to drive two number one. The .5 means that you're going to go in between number one and number two. So 1.5 comma 7. So we're going to start here at the origin. We're going to drive over to number one. 1.5 is right here in the middle. .5 means middle. Don't put a dot yet, and then you have to drive up to number 7. You have to go straight up. We're not on the blue line. Remember we're here in the middle. One blue line, two, three, four, 5, 6, and 7. You put your dot here in the middle. This is 1.5 comma 7. I think a lot of you were confused about that .5. The next point that we have is two, 5, start here at the origin, go over to number two, go up to number 5, put a dot. The next and by the way, let's go back here. Does anyone remember what this is called? If you have a zero first and then a Y number, what's the vocabulary word for that? Yes, this is your Y intercept. Y intercept. Correct. When you have a zero, and then a Y number, that's called your Y intercept. All right. The next coordinate that we're going to plot. Is 1.53. So I'm going to go start at the origin, go over to one and go to 1.5 here in the middle, and then go straight up three lines. One, two, three. And put a dot. In the middle. The next one we have is 0.5 comma 1.5. So I'm going to start at zero. And .5 is positive, which is in this direction. So .5 is in the middle. So 0.5 and that I'm going to go up to one blue line and then a half of a blue line. So I'm going to go up one, and then I'll go up .5. So this is zero .5 comma 1.5. The next relation is three one, and then four one. So I'm going to go over, start the origin, go over to three, up to one, put a dot. I'm going to go back to the origin, go over to four, up to one. Put it up. The next corner that we have is 5 comma 1.5. So I'm going to go over to 5 and then up one line and .5 and put a dot. And then you can continue and then connect your dots.