Math 160

Quiz 3 Name: __ Key __

__You must show all work to receive credit__

1.
Find the __average__
rate of change of on the interval [1, 4]

2. Use the definition of the derivative (either
formula from the book and that we discussed in class is ok) to find the __instantaneous__
rate of change of

3. Evaluate *with
justification* the following limits:

*This is continuous at 1, so the easiest
solution is to simply evaluate it there:
*