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There are a couple ways to determine the equation of a line without graphing. How to proceed depends on what you know about the line.

Do you know a point, (x1, y1), and slope, m? Then use the point-slope formula,

Do you know two points on the line, say (x1, y1) and (x2, y2)? Then use the two-point formula,

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Q: How do you find the equation of a line without graphing?
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