Learning Resources

Investigation 9: Looking Inside the Box: Properties of the Function y = ex & Investigation 10: The Derivative of y = ex

Step E

• Once you have graphed the two functions, you should see that they are images of one another after a reflection in the y-axis. 
• Which of the two functions is always increasing?
• Which function is always decreasing?
• Which function models exponential growth?
• Which function models exponential decay?