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The scatter plot below shows the cost (y) of long distance phone call based on the number of minutes (x) the calls take. Part A. Draw a line of best fit on the scatter plot

Part B write the approximate equation of the line of best fit

It should be in slope intercept form.

Part C. Use your equation from part B to predict the cost of a long distance call that lasts 120 minutes. Be sure to show your work

Part D. Explain how you found your answer to Part C.

The scatter plot below shows the cost y of long distance phone call based on the number of minutes x the calls take Part A Draw a line of best fit on the scatte class=

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MrRoyal

The scatter plot that shows the cost of long distance phone call is an illustration of a linear regression

Part A: Draw a line of best fit

See attachment for the line of best fit

Part B: The equation in slope intercept form

From the attached graph, the line passes through the points:

(x,y) = (0,0) and (40,4)

The equation is then calculated using:

y = y2/y1 * x

This gives

y = 4/40 * x

Evaluate

y = 0.1x

Part C: Predict the cost of long distance call of 120 minutes

This means that x = 120

So, we have:

y = 0.1 * 120

y = 12

Hence, the predicted cost of long distance call of 120 minutes is $12

Part D: Explanation of C

The answer in part C is calculated by substituting 120 for x in  the equation of the line of best fit

Read more about scatter plots at:

https://brainly.com/question/6592115

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