Use ^ for powers. Accepts forms like x^2+5x-6, -3x^2+2, or 0.5x^2 - x - 1.5.
Using Standard form
Graph
y = ax^2 + bx + c
x-intercepts
y-intercept
Vertex
Tip: click Analyze after editing. Zoom is auto-fit around the interesting parts.
Key Features
a = —
b = —
c = —
Discriminant D = —
Vertex (h, k) = — min/max
Axis of symmetry x = —
x-intercepts —
y-intercept (0, c) = —
Domain = (-∞, ∞)
Range = —
Quadratic Formula with Substitution
x = (−b ± √(b² − 4ac)) / (2a)
Enter a valid quadratic to see the numbers substituted.