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12 cards from this deck
Equations where at least one equation is quadratic
Substitution
Substitute linear equation into quadratic equation
Rearrange to form quadratic equation equal to zero
x=−b±b2−4ac2ax = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}x=2a−b±b2−4ac
Complex solutions
Intersection points are real and can be plotted
Curves do not intersect on the real plane
Substitute xxx back into linear equation
Quadratic formula or factorization
Intersection points of the curves
Nature of the discriminant
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