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Mathematics · L3 · How Many Solutions Does a System Have?

A quick graphical test — compare slopes and y-intercepts to predict whether a system has one solution, no solution, or infinitely many, before you finish solving it.

Mathematics
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📈 Graph both linesDo the slopes differ?✅ Lines cross at one pointSame y-intercept too?🟰 Same line — infinite solutions🚫 Parallel lines — no solutionYesNoYesNo

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