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11 cards from this deck
A line that intersects a circle at exactly one point
The single point where a tangent meets a circle
No intersection, two points, one point (tangent)
Simultaneous equations
Express line as y=...y=...y=... or x=...x=...x=... form
Substitute into the circle equation
Line intersects circle at two points
Line is tangent to the circle
Line doesn't intersect the circle
To avoid fractions where possible
Substitute points back into both original equations
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