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Precalculus: How to find slopes of lines. Find equations of parallel and perpendicular lines.
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Use the slope-intercept form of a linearequation to sketch graphs.
Find slopes of lines passing through two points.
Use the point-slope form to write equations of lines.
Find equations of parallel and perpendicular lines.
Find slopes of lines passing through two points.
Use the point-slope form to write equations of lines.
Find equations of parallel and perpendicular lines.