A quadratic function is a function of the form y=ax^2+bx+c, where a, b, and c are some numbers, and a is not zero.
The graph of the quadratic function is a parabola.
When increasing the coefficient a the graph is as «compressed», when negative a parabola is turned “upside down”, when changing the coefficient b the graph is «deviated» to the side, and when changing the coefficient c the graph «runs» up and down.
Plot a graph of the quadratic function online
Example quadratic function graph:
y=x^2
y=3x^2
y=-x^2
y=3(x^2)-4
y=3-x^2
All graphics are built with our graphical calculator