➗ Parabola Vertex Calculator
Find the vertex of y = ax² + bx + c.
Result
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How this calculator works
Find the vertex of y = ax² + bx + c.
Formula
xᵥ=-b/(2a), yᵥ=f(xᵥ)
Example
For y=x²-4x+3, the vertex is (2,-1).
Frequently asked questions
What does the Parabola Vertex Calculator do?
Find the vertex of y = ax² + bx + c.
Are the results exact?
The calculator follows the displayed formula. Rounded display values may differ slightly from full-precision results.
Can I use negative or decimal values?
Most fields accept decimals and negative values when they make sense for the formula.
How should I check an important result?
Review the formula, verify your entries, and confirm high-stakes work with a qualified teacher or professional.