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Lukas collected data on years of employment and the annual salaries of the salespeople at Company Z. He made a scatter plot and drew a trend line that approximated the line of best fit for the data, as shown below. What is the slope of the trend line that Lukas drew?

User Najmus Sakib
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1 Answer

7 votes
7 votes

Answer:

The slope is 2500

Explanation:

Given

See attachment for scatter plot

Required

Determine the slope of the scatter plot

From the plot, we can pick the following 2 points:


(x_1,y_1) = (9,55000)\\


(x_2,y_2) = (3,40000)

The slope (m) is then calculated as:


m = (\triangle y)/(\triangle x)

This gives:


m = (y_2 - y_1)/(x_2 - x_1)


m = (40000-55000)/(3-9)


m = (-15000)/(-6)


m = (15000)/(6)


m = 2500

The slope is 2500

Lukas collected data on years of employment and the annual salaries of the salespeople-example-1
User Dmungin
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