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Julio is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0-100). His data is displayed in the table and graph below.

Julio is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0-100). His data is displayed in the table and graph below.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Julio is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0-100). His data is displayed in the table and graph below. Hours 7 6 5 4 1 Brightness Level (x) 33 42 46 63 73 82 85 87 · Hours (y) 4.7 5.3 4.3 4.5 4.8 b) Interpret the slope in context. 4.6 3.8 1.9 .. ● 10 20 30 40 50 60 70 80 90 100 111 Brightness Level ++ a) Find the equation for the line of best fit. Keep at least 3 decimals for each parameter in the equation. (You should begin by typing y=) Julio should expect -0.0288 hours per brightness level. Julio should expect -0.0288 brightness level per hour. c) What does the equation predict for the number of hours the phone will last at a brightness level of 52? hours
Transcribed Image Text:Julio is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0-100). His data is displayed in the table and graph below. Hours 7 6 5 4 1 Brightness Level (x) 33 42 46 63 73 82 85 87 · Hours (y) 4.7 5.3 4.3 4.5 4.8 b) Interpret the slope in context. 4.6 3.8 1.9 .. ● 10 20 30 40 50 60 70 80 90 100 111 Brightness Level ++ a) Find the equation for the line of best fit. Keep at least 3 decimals for each parameter in the equation. (You should begin by typing y=) Julio should expect -0.0288 hours per brightness level. Julio should expect -0.0288 brightness level per hour. c) What does the equation predict for the number of hours the phone will last at a brightness level of 52? hours
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