Graphs of Linear Equations. Please download the powerpoint file to enable animations
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2. The relationship between the number of passengers and the bus fare
Number of Passengers
Bus fare (baht)
0
0
1
7
2
14
3
21
4
28
Ordered pairs:
0,0 1,7 2,14 3,21 4,28
In writing ordered pairs representing relations between two sets of
data, we must clearly define which data set is represented by the
first or the second entry. The order of the entries in ordered pairs
cannot be changed without changing the meaning of the pairs.
3. The relationship between the number of passengers and the bus fare
Number of
Passengers
Bus fare (baht)
0 1
7
14
21
28
35
2 3 4 5
4. The relationship between the number of notebooks and the prices
Number of notebooks
Price (baht)
0
0
1
8
2
16
3
24
4
32
Ordered pairs:
0,0 1,8 2,16 3,24 4,32
10. When the two sets of number are integers, the
graphs representing their relationship are
points aligned in straight lines
When the two assigned quantities change
continuously, the graphs showing their
relationship becomes a straight line