PreCalculus
Section 2-1: The Twelve Basic Functions
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Date: SECTION 2-1: THE TWELVE BASIC FUNCTIONS
1.
The Identity Function
f ( x) = x
2.
The Squaring Function
f ( x) = x2
3.
The Cubing Function
f ( x) = x3
4.
The Reciprocal Function
f ( x ) = 1x
5.
The Square Root Function
f ( x) = x
6.
The Exponential Function
f ( x) = ex
7.
The Natural Logarithm Function
f ( x ) = ln ( x )
8.
The Sine Function
f ( x ) = sin ( x )
9.
The Cosine Function
f ( x ) = cos ( x )
10.
The Absolute Value Function
f ( x) = x
11.
The Greatest Integer Function
f ( x ) = int ( x ) = [ x ]
12.
The Logistic Function
f ( x ) = 1+e1- x