Special Solutions of Systems
Overview
Goal. Recognize the special systems on sight: different slopes mean one solution; the same slope with different intercepts means no solution; the same line written twice means infinitely many solutions.
Parallel lines (definition). Lines in the same plane that never meet. For two lines in slope-intercept form, parallel means the slopes are equal and the y-intercepts are different.
Lesson Notes
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Lesson Video
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Interactive Activity
Goal. Recognize the special systems on sight: different slopes mean one solution; the same slope with different intercepts means no solution; the same line written twice means infinitely many solutions.
Parallel lines (definition). Lines in the same plane that never meet. For two lines in slope-intercept form, parallel means the slopes are equal and the y-intercepts are different.