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TermDefinition
quadratic function a second degree polynomial function where a, b, and c are real numbers
axis of symmetry line through the graph of a parabola that divides the graph into two congruent halves
vertex the axis of symmetry will intersect a parabola at this point
maximum/minimum value the y-coordinate of the vertex of a quadratic function
roots solutions of a quadratic equation
FOIL method stands for: first, inner, outer, last. Uses the distributive property to multiply binomials.
pure imaginary numbers square roots of negative real numbers
completing the square manipulating the equation until one side is a perfect square, then solving using the square root property
quadratic formula a formula that can solve any quadratic equation. this formula can be derived by solving the standard form of a quadratic equation.
discriminant the part of the quadratic formula that is under the square root sign