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How To Master Quadratic Regression

quadratic regression graph

Similar to functions, quadratic regression is a way to model a relationship between two sets of independent variables. Quadratic regression is the process of determining the equation of a parabola that best fits a set of data. This set of data is a given set of graph points that make up the shape of a parabola. The equation of the parabola is y = ax2 + bx + c, where a can never equal zero.

The graphs of quadratic functions have a nonlinear “U”-shape with exponential curves on either side of a single intercepting y-value. We’ll show you how to use this equation.

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How To Use the Leading Coefficient Test To Graph End Behavior

leading coefficient test: leading coefficient is negative graph

You can use the leading coefficient test to figure out end behavior of the graph of a polynomial function. This isn’t some complicated theorem. There’s no factoring or x-intercepts. Here are two steps you need to know when graphing polynomials for their left and right end behavior.

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