The equation most closely models the line of best fit for the scatter plot is y = 2.5x
Equation of a line
A line is the distance between two points. The equation of a line in point-slope form is given as y =mx + b
where:
m is the slope or rate of change
b is the intercept
Using the coordinate points on the line (3, 5000) and (9, 20000)
Get the rate change(slope)
Slope = 20000-5000/9-3
Slope = 15000/6 = 2500
Determine the y-intercept by substituting
5000 = 2500(3) + b
b = 5000 - 7500
b = -2500
Determine the equation
y = 2.5x - 2.5
Hence the equation most closely models the line of best fit for the scatter plot is y = 2.5x
Learn more on line plot here: brainly.com/question/8989301
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