Question

40 points
When Anthony left his house in the morning, his cell phone battery was partially charged. Let BB represent the charge remaining in Anthony's battery, as a percentage, tt hours since Anthony left his house. A graph of BB is shown below. Write an equation for BB then state the slope of the graph and determine its interpretation in the context of the problem.

Answer 1

Using the slope equation Y2-Y1/X2-X1 we can solve the equation. The equation will be written as y=mx+b. b is the starting point so it will equal 20

10-15/4-2 = -5/2 <---- slope

the equation would be BB = -5/2(x) + 20

hope this helps.