A quadric surface is the graph in space of a second-degree equation in [math]x[/math], [math]y[/math], and [math]z[/math]. In this interactive figure, we focus on quadric surfaces given by the equation [br] [math]Ax^2+By^2+Cz^2+Dz=E[/math][br]where [math]A[/math], [math]B[/math], [math]C[/math], [math]D[/math], and [math]E[/math] are constants.

[i]This applet was developed for use with [url=https://www.pearson.com/en-us/subject-catalog/p/interactive-calculus-early-transcendentals-single-variable/P200000009666]Interactive Calculus[/url], published by Pearson.[/i]