1. Why is the absolute value function a piecewise-defined function? Which characteristic of all piecewise defined functions is present in the definition of the absolute value function?
2. Explain the relationship between exponential and logarithmic functions.
3. What restrictions allow the inverses of the trigonometric functions sine, cosine, and tangent to also be functions?
4. Compare and contrast power and exponential functions. Given a set of data, how can you determine if it is best modeled by a power function or an exponential function?
