Brightness Level x Hours y 10 9 8 7 6 Hours 54 3 2 7...

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Brightness Level x Hours y 10 9 8 7 6 Hours 54 3 2 7 10 20 30 37 39 5 3 30 42 4 1 6 3 6 8 5 9 43 85 55 b Interpret the slope in context 4 5 hours 89 3 2 40 50 60 70 80 90 100 11 Brightness Level 1 a Find the equation for the line of best fit Keep at least 4 decimals for each parameter in the equation I Ashton should expect 0 0439 hours per brightness level Ashton should expect 0 0439 brightness level per hour 92 2 4 c What does the equation predict for the number of hours the phone will last at a brightness lev of 42

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