- Domain = (-∞, ∞)
- Range = (0, ∞)
- Increasing if a > 1
- Decreasing if 0 < a < 1
If different inputs have different outputs, and vice versa AKA one x-value doesn’t have multiple y-values
If a horizontal line touches the function more than once, then it is NOT a One-to-One Function
Definition of Euler’s Number:
The Natural Base Exponential Function:
Growth if a > 0 AND r > 0
Decay if a > 0 AND r < 0
Doubling Time and Half-Life:
It is the time it takes for the function values to double OR for it to halve.
How to find a and b from two points:
Things to remember:
Always Round-UP when dealing with years
Ex. 2005.2 is 2006 obviously.