2. Functions
By: Rakshit Jain
…..A Beginner’s Guide to Math HL Function (:
Table of contents:
1. Functions
2. Set-Builder Notations
3. Interval Notation
4. Linear Graphs
5. Graphing Linear graphs with a restricted
domain
6. ...Domain
&
….....Range
Range: The set of all second
elements; dependent variables
Domain: The set of all first
elements of the ordered pair;
independent variable
Domain = { 0, 12, 14, 16, 18 }
Range = { 31, 36, 48, 53, 65 }
X Y
10 31
12 36
14 48
16 53
18 65
Consider the points:
7. ...Linear
…..Functions
y = f(x) = a + bx
1. Find 2 points which satisfy
the equation
2. Plot them
3. Connect the points with a
straight line
Graphing a Linear Function:
8. ...Linear
…..Functions
y = f(x) = a + bx
1. Find 2 points which satisfy
the equation
2. Plot them
3. Connect the points with a
straight line
Graphing a Linear Function: