John is 5 years older than Mary. In 10 years, twice John’s age decreased by Mary’s age is 35, and john’s age will be twice Mary’s currant age. Find their ages now.

The common form of exponential function is y = xᵃ where x is the variable and a is raised to a specific number. From this, the graph would on the value of a. An example would be when there are 70000 bacteria present in a culture and reduced by half every four hours, the number of bacteria will decrease. The bacteria will experience an exponential decay because it decreases its number at a constant decay.