The equation for the line of best fit for a scatterplot has the form:
y = mx + b
Where m is the slope.
From the given scatterplot, the points have a positive linear correlation.
To find the line of best fit for a scatterplot, the first step to take is to find the two points that you think will be on the best fit line.
From the two points, you can no find the slope using the slope formula.
Therefore, to write an equation for the line of best fit for thr given scatterplot without using a graphing calculator, the first thing you should do is to decide which two points give the most representative straight line.
ANSWER:
Decide which two points give the most representative straight line.