Question

Vicky charged her phone to 100 percent, it loses 5 percent of its battery life every hour. What function models the percentage of battery life in terms of hours.

Answer 1

F(x) = 100 – 5h

Explanation:

It is stated in the text that you lose 5% every hour. Knowing this, you can find out the expression by finding h-hours for any time period, not just one hour. So solving the equation would mean that you have 95% on your phone after one hour.