Finding the domain and range of a quadratic function

There's a tool out there that can help make Finding the domain and range of a quadratic function easier and faster

Parabola Graph

Using Algebra to Find Domain and Range Standard Form. If a is positive, the function opens up; if it’s negative, the function opens down. In this form, the y Vertex Form.
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Determining the Domain and Range for Quadratic Functions

Enter the formula for which you want to calculate the domain and range. The Domain and Range Calculator finds all possible x and y values for a given function. Step 2: Click the blue arrow to

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