Question

rory records the percentage of battery life remaining on his phone throughout a day. the battery life decreases as rory uses the phone, but will increase or stay at 100% while charging. the graph represents the percentage of battery life remaining after a certain number of hours. at which times could rorys phone have been plugged into the charger? select three options. 6 hours 9 hours 11 hours 14 hours 19 hours phone battery life 120 110 100 90 80 70 60 50 40 30 20 10 0 2 4 6 8 10 12 14 16 18 20 elapsed time (hours) battery life (%)

Explanation:

Step1: Analyze the graph

When the phone is plugged in, the battery life will increase or stay at 100%. We look for the flat - sections or upward - sloping sections of the graph.

Step2: Identify the time intervals

The flat sections are around 9 - 12 hours and 14 - 20 hours.

Step3: Select the options

The times that fall within these intervals are 9 hours, 14 hours, 19 hours.

Answer:

9 hours, 14 hours, 19 hours