In this applet you will explore the domain and range of a quadratic function of the form [math]f(x)=ax^2+bx+c[/math]. Drag the sliders to change the values of the coefficients [math]a[/math], [math]b[/math] and [math]c[/math]. To visualize the domain, slowly drag the "d" slider. To visualize the range, slowly drag the "r" slider. To simultaneously see both domain and range visualizations, check the box.