How to Study for AP® Physics Exam: 7 Tips for 4s and 5s 1.
It may happen as in fig 4 below that one point is so far from the others that it would make no sense to include it when drawing the line of best fit. It is acceptable to have them two by two on the same side of the line. In case you are unable to make the points alternate on both sides of the line from one end of the line to the other as in fig 3 below. Also make sure that two points that are closest to each other and are on different sides of the line are the same distance from the line. A you see from one side of the line to the other the points alternates up and down. As such you will have to draw a line such that the points are on both sides of the lines as such. Most of the time you will be faced with points as in fig 2 below. Make sure that the line extends on both side to cover all the points. In such a case it would be enough to choose two points far away from each other and then draw a line from one to the the other. In fig 1 below you can see that the points forms an almost perfect straight line. Although I must say that such occurrence is quite rare. Sometimes you will obtains points that are as shown below in fig 1. You should read all of them and choose which tips is appropriate. The following are tips that you can use in order to obtain the best line of best fit from a few points. The line can then be used to determine the gradient and the y-intercept of the line if it is a straight line.
The line of best fit is a line that is drawn through a series of points in a graph in order to determine the trend in the points.
In many questions in Physics or often in a practical students are often required to draw a line of best fit.
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