Solving Linear Quadratic Systems Algebraically A linear quadratic system is a system containing one linear equation and one quadratic equation which may be one straight line and one parabola, or one straight line and one circle. Algebraic Solutions straight line: y = mx + b parabola: y = ax2 + bx + c; a ≠ 0 circle: (x - h)2 + (y - k)2 = r2 ; center (h.k), radius … [Read more...] about Solving Linear Quadratic Systems Algebraically