Download Pre-Calculus – Exponential Functions: From Graphs to Equations

Pre-Calculus – Exponential Functions: From Graphs to Equations
Remember, the general form of an exponential function is y = a bx. Find an equation for the following
graphs of exponential functions:
Example 1
Example 2
On Your Own…
1.
Name_____________________
2.
3. A population of fish in a certain pond starts at 200. After 5 years, the population has increased to
6400 fish. Find an equation to represent the total population of fish in pond over x years.
4. A child diagnosed with an ear infection is given a prescription for antibiotics. The initial dose is 50
mg. After 2 hours, her body has metabolized 30% of the drug. Find an equation to model the
amount of the drug in her body x hours after the initial dose.