For the first question regarding which graph shows the line of best fit for the data, without seeing the graphs, it’s impossible to provide a definitive answer. The best line of fit will visually represent the trend in the data points, minimizing the distance of all points from the line, ideally balancing above and below it.
For the second question about what is most important when drawing a line of best fit for data on a scatter plot, the best answer is:
D. The closeness of all data points to the line.
This is because the line of best fit should ideally be positioned to minimize the overall distance from all data points, thus reflecting the overall trend of the dataset.