A Quadratic function comes with the standard form of y = ax2 + bx + c, when the highest power over the x variable(s) is 2.
Please note that when "a" is positive, the parabola opens upward, and the vertex is the minimum value of the function. On the other hand, if "a" is negative, the graph opens downward, and the vertex is the maximum value of the function.
Below, explore the interactive graph that allows you to change the a, b, and c values in a quadratic equation and view how the resulting parabola changes. Please note that the initial quadratic function shown in the graph is y = x2 (refresh the graph to return to y = x2).