As I know, it is like this...
From the bottom point you have put, you connect it till the end point with just a straight line. You don't follow every points as that isn't line of best fit.
Hope that did help! :)
if you only have one point
yes
When points are marked on a graph, a line is often drawn across the dots plotted. A line of best fit is a straight line that goes through as many of such points as possible.
show a trend
You should use a curve if the scatter plot shows a clear curving shape. Otherwise draw a straight line. But a line of best fit should never zigzag from point to point.
No. When you draw a best line of fit on the scattered plot, the line would not be straight.
You want to draw a line through your plotted points and try to get equal amounts on either side.
Yes but phrased differently
The line that minimized the sum of the squares of the diffences of each point from the line is the line of best fit.
To draw a line of best fit on a TI-83 Plus, first enter your data into a list by pressing the STAT button, selecting 1:Edit, and inputting your x-values and y-values in separate columns. Next, press STAT, scroll to CALC, and select 4:LinReg(ax+b) to compute the line of best fit. After running the regression, you can graph it by pressing Y= and entering the equation generated by the LinReg function. Finally, press GRAPH to display the line along with your data points.
A line of best-fit.
No, you draw a general line through the middle of the points.(A line of fit)