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Features of quadratic functions. Graph parabolas in all forms. Interpret quadratic models: Factored form. Interpret quadratic models: Vertex form. Interpret quadratic models. Graphing quadratics review.
The quadratic formula helps us solve any quadratic equation. First, we bring the equation to the form ax²+bx+c=0, where a, b, and c are coefficients. Then, we plug these coefficients in the formula: (-b±√(b²-4ac))/(2a) . See examples of using the formula to solve a variety of equations.
Unit 1 Properties of functions. Unit 2 Linear equations, inequalities, and systems. Unit 3 Quadratic functions & equations introduction. Unit 4 More on quadratics & complex numbers. Unit 5 Polynomial equations & functions introduction. Unit 6 More on polynomial equations & functions. Unit 7 Inverse functions.
Learn how to solve quadratic equations by factoring with Khan Academy's step-by-step guide.
The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a function; Exponential models; and Quadratic equations, functions, and graphs.
Learn about vertex form in quadratic functions and equations with Khan Academy's introductory video.
The graph of a quadratic function is a parabola, which is a "u"-shaped curve. In this article, we review how to graph quadratic functions.