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Plot points in all four quadrants and graph linear equations.
Learn step-by-step with practice exercises built right in.
The coordinate plane is divided into four quadrants:
| Quadrant | Example | ||
|---|---|---|---|
| I | + | + |
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Avoid these 3 frequent errors
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| II | โ | + |
| III | โ | โ |
| IV | + | โ |
A linear equation graphs as a straight line.
To graph :
| Point | ||
|---|---|---|
| -1 | ||
| 0 | ||
| 1 | ||
| 2 |
Plot the points and connect them with a straight line.
For :
For horizontal/vertical distances, subtract coordinates:
Practice: Graph by making a table of values. Find the x-intercept and y-intercept.