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14 cards from this deck
Straight line
Curves (circles, parabolas, hyperbolas)
Intersection points where line meets curve
Substitution method
Express one variable in terms of other (from linear eq)
Substitute into quadratic eq and solve
Find corresponding values for other variable
x2+y2=r2x^2 + y^2 = r^2x2+y2=r2 (r is radius)
y=ax2+bx+cy = ax^2 + bx + cy=ax2+bx+c or y=x2y = x^2y=x2
Two solutions (most common case)
One solution (touches at exactly one point)
Linear equation (easier to rearrange)
Factorising quadratic expressions
a2−2ab+b2a^2 - 2ab + b^2a2−2ab+b2
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