Gracyn took her cell phone off its charger and, every hour, recorded the battery power remaining. After 10 hours, she recharged it. She used technology to determine the correlation coefficient and the line of best fit for data that compares the cell phone battery time since last charge and battery power remaining. The results produced by technology are shown

r^2 = 0.9915
r = -09958
m = -8.14545
b = 102.4
Use the results shown to complete the statements.

The data has a ___ ___,
linear relationship. The line of best fit that models this context is [Drop Down 3].

1 answer

The data has a strong negative linear relationship. The line of best fit that models this context is y = -8.14545x + 102.4.