#21?
Constants = substitution
Polynomial functions are well-behaved
Rational functions have more problems when we replace with negative
Similar graph, but not the same. Difference is that one is continuous and the other is not
(missing point). Therefore,

#21?
Constants = substitution
Properties of Limits
Polynomial functions are well-behaved
Rational functions have more problems when we replace with negative
Limit of Composite Function Rational
Properties of Limits, Trig limits
Similar graph, but not the

#34 (Chapter 1, WebAssign)
7/x = 7x-1
7 * -1 = -7
7x-1-1
X-2 = 1/x2
1/x2 * -7
Finding derivatives: Very important definition for derivative
f ( x+ x )f ( x)
F(x) = Lim
x
x 0
All kinds of limits (, -, DNE, etc.)
F(x) = Slope of the tangent at a point x
We

Name: Class: Date: 1]): A
sample nal 220
Multiple Choice
Identii the choice that best completes the statement or answers the question.
1. Find the value of the derivative (if it exists) of the function f(x) = 1 lxl at the extremum point (0, 1).
99.0575

Not every time when the f is equal to zero do we have a point of inflection
Because as we differentiate, we need a Second Derivative Test
If the function is concave upward, then there must be a relative minimum
If the function is concave downward, then th