Question

Liam and Sarah have each drawn a line on the scatter plot shown below:

The graph shows numbers from 0 to 10 on x and y axes at increments of 1. Dots are made at the ordered pairs 1, 7 and 2, 6 and 3, 5.5 and 4, 5.8 and 4.5, 4.8 and 5, 4 and 6, 3.5 and 7, 3 and 8, 2.9 and 9, 2.2 and 10, 1.5. A straight line labeled Line A joins the ordered pairs 0, 7.2 and 10.4, 0. A straight line labeled Line B joins the ordered pairs 0, 7.2 and 9.8, 0.
Which line best represents the line of best fit?
Line A, because it shows a positive association
Line A, because it is closest to most data points
Line B, because it is closest to most data points
Line B, because it shows a negative association

Answer 1

Line A

Explanation:

It is the closest to the data points

Answer 2

Line A, because it is closest to most data points

Explanation:

That is your answer because Line A is the closest to most of the data points, while Line B is more farther away. Also, the line of best fit has nothing to do with the positive or negative association.