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

Explanation:

Step1: Analyze graph behavior

When the phone is plugged in, the battery - life percentage either increases or stays at 100%. On the graph, we look for points where the battery - life starts to increase or remains constant at 100%.

Step2: Identify increasing or constant points

At 9 hours, the battery - life starts to increase from a low value. At 14 hours, the battery - life starts to increase from a low value. At 19 hours, the battery - life is at 100% and remains constant.

Answer:

9 hours, 14 hours, 19 hours