In a study on speed and braking distance, researchers looked for a method to estimate how fast a person was traveling before an accident by measuring the length of the skid marks. An area that was focused on in the study was the distance required to completely stop a vehicle at various speeds. Use the following table to answer the questions. MPG Braking distance (feet) 20 20 30 45 40 81 50 133 60 205 80 411 (a). Find the linear regression equation. (b). Find the MPG when the braking distance is 100.

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