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Quadratics

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Term
Definition
Parabola   The graph of a quadratic function  
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Quadratic Equations   Quadratic functions that are set equal to a value  
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Roots   The solutions of a quadratic equation  
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Zeros   The x-intercepts of the graph of a function; the points for which f(x)=0  
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Imaginary Unit   i, or the principle square root of -1  
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Complex Number   A number that can be written in the form a + bi, where a and b are real numbers and i is the imaginary unit  
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Complex Conjugates   Two complex numbers of the form a + bi and a - bi  
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Discriminant   In the Quadratic Formula, the expression b^2 – 4ac  
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Quadratic Function   A function described by the equation f(x)=ax^2 + bx + c, where a does not equal zero  
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Quadratic Term   In the equation f(x)=ax^2 + bx + c, ax^2 is the quadratic term  
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Linear Term   In the equation f(x)=ax^2 + bx + c, bx is the linear term  
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Constant Term   In the equation f(x)=ax^2 + bx + c, c is the constant term  
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Axis of Symmetry   A line about which figure is symmetric  
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Vertex   The point at which the axis of symmetry intersects a parabola  
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Maximum Value   The y-coordinate of the vertex of the quadratic function f(x)=ax^2 + bx + c, where a < 0  
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Minimum Value   The y-coordinate of the vertex of the quadratic function f(x)=ax^2 + bx + c, where a > 0  
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Factored Form   The form of a polynomial showing all of its factors. y = a(x - p)(x - q) is the factored form of a quadratic function  
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FOIL method   The product of two binomials is the sum of the products of F for the first terms, O for the outer terms, I for the inner terms, and L for the last terms  
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Completing the Square   A process used to make a quadratic expression into a perfect square trinomial  
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Quadratic Formula   The solutions of a quadratic equation of the form ax^2 + bx + c, where a does not equal 0, are given by the Quadratic Formula, which is: -b +- √b^2-4(a)(c) -------------------------------- 2(a)  
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Created by: dhruvipatel
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