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Quadratic equation grapher

Graph a parabola and calculate its vertex and real roots.

Enter a, b, and c for y = ax² + bx + c. The coefficient a cannot be zero.

Example

For y = x² − 3x + 2, the roots are 1 and 2, and the vertex is (1.5, −0.25).

Main function

Current function: f(x): 1x² − 1x − 5

Main function
Discriminant
21
Vertex
(0.5, -5.25)
Real roots
-1.791, 2.791
Y-intercept
(0, -5)

Solution steps

  1. Calculate the discriminant: Δ = b² − 4ac = 21.
  2. There are two distinct real roots: -1.791, 2.791.
  3. The vertex is: (0.5, -5.25).