There are many apps that will analyze quadratic functions, but this one will do it in exact terms with fractions and radicals, and graph it, too.

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In Exact mode, enter a quadratic function with integer or fractional coefficients to get results in exact form, which is the form you would get if you were doing it by hand.

In Approx mode, you can enter decimals and get results in the form of decimal equivalents which are useful for graphing.

Switch to Graph view and see a graph of the quadratic function you just entered.

Input: Quadratic function in general form

Output:
• Quadratic function in standard form
• Quadratic function in factored form
• Coordinates of the vertex
• Roots or zeros (real or imaginary)
• Focal length
• Coordinates of the focus
• Directrix
• Graph of the function

When switching from Exact mode to Approx mode: the app will estimate fractional values to two decimal places.

When switching from Approx mode to Exact mode: the app will try to find fractional expressions to represent noninteger decimal coefficients.