The line of best fit, also called a trendline or a linear regression, is a straight line that best illustrates the overall picture of what the collected data is showing.
It helps us to see if there is a relationship or correlation between the two factors being studied. This trendline helps us to predict future events relating to the data being studied.
In other words, the line of best fit must be aligned with the data in the graph.
Among the given statements, only the following is true:
A.) Graph A shows a line of best fit because the data shows a positive correlation and the line has a positive slope.
B.) The line in Graph C has a negative slope, but the data shows a positive correlation. The line is NOT the line of best fit.