If you are given a graph with a system of linear equations, you need to be able to look at the graph and determine how many solutions there should be.
Let’s look at these graphs.
Example 1
![a graph of 2 parallel lines is shown.](http://www.ontrack-media.net/algebra1/a1m5l9image33.jpg)
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What appears to be the number of solutions to this system?
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Example 2
![a graph of 2 lines intersecting is shown.](http://www.ontrack-media.net/algebra1/a1m5l9image34.jpg) |
What appears to be the number of solutions to this system?
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Example 3
![a graph of 2 lines intersecting is shown.](http://www.ontrack-media.net/algebra1/a1m5l9image35.jpg) |
What appears to be the number of solutions to this system?
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Check Your Answer
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