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Unformatted text preview: t all or some of the ordered pairs in
the relation, then we plot them on a Cartesian coordinate
plane.
Often we can only take a sample of the points to plot.
We may be able to interpolate by connecting our sample of
points with a curve. Circles Outline Relations Graphing Relations Examples
Example
Graph the relations.
(2000, 6071 M), (2005, 6454 M), (2010, 6877 M),
(2012, 7035 M).
Birthdays to month.
Month Birthdays
y
x
1
0
2
4
3
0
4
1
5
4
6
2
y = 3x + 1. Month
x
7
8
9
10
11
12 Birthdays
y
1
1
3
2
3
2 Circles Outline Relations Graphing Relations Circles The Midpoint Formula
Theorem
The midpoint of the line segment
between the points (x1 , y1 ) and
(x2 , y2 ) is: y
(x1 , y1 )
x M= x1 + x2 y1 + y2
,
2
2 M
(x2 , y2 ) Example
1 2 Find the midpoint of the line segment from (2, −5) and
(−4, −8).
√
Find √ midpoint of the line segm...
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This note was uploaded on 02/10/2014 for the course MATH 1050 taught by Professor K.jplatt during the Spring '14 term at Snow College.
 Spring '14
 K.JPlatt
 Math, Algebra, Cartesian Coordinate System

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