5Factor the left side of the equation. 6Find and write the coordinates x, y . Proposed exercises. Solve and represent the following functions

Calculate the vertex of the following parabolic function: We explain quadratic functions or parabolas (definition, examples, vertex, cut points.

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Quadratic functions - Determine a quadratic function from its roots. Enter the roots and an additional point on the graph. - Calculate a function
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The general form of a quadratic function is f ( x ) = ax 2 + bx + c . The graph of a quadratic function is a parabola , a type of 2-dimensional curve.

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Cutting points with the x-axis. To find the value of x when f(x)=0 , the second coordinate must equal zero, so

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We see how to obtain the equation of the quadratic function from the graph of the parabola. GeoGebra Applet Press Enter to start the activity

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