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10 questions from this quiz
Three
Two points of intersection
Δ=0\Delta = 0Δ=0
No intersection
Substitute line into circle equation
Quadratic in xxx
b2−4acb^2 - 4acb2−4ac
When line is tangent
5x2−4x−24=05x^2 - 4x - 24 = 05x2−4x−24=0
(x−h)2+(y−k)2=r2(x - h)^2 + (y - k)^2 = r^2(x−h)2+(y−k)2=r2
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